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本帖最后由 Borden 于
11:58 编辑
简介：这是一个在STM32F103开发板上做的FFT计算演示程序。程序以36kHz采样率从AD采集播放器的音频信号，然后以同样速率发送到DA通过喇叭播放。同时采下来的信号做FFT变换，在屏幕上显示两路音频波形以及频谱。
之前的程序(/forum.php?mod=viewthread&tid=5574904&page=1#pid7424203)搞好之后本来不打算再弄了，但是在本坛另外一个帖子里面发现原来ST是有官方DSP库的，文档：(/st-web-ui/static/active/en/resource/technical/document/user_manual/CD.pdf)，里面的benchmark结果显示官方库的1024点FFT的速度居然达到了2.138ms，基本上是我之前程序速度的一倍，于是我又不淡定了。。。
去官网找了半天居然找不到那个库的下载，放狗一搜才发现有人说官方早就把那个库下架了，我估计是为了给带DSP指令集的F4系列让路。还好有老外放出了下载(/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/DispForm.aspx?ID=30831&RootFolder=%2fpublic%2fSTe2ecommunities%2fmcu%2fLists%2fcortex%5fmx%5fstm32%2fSTM32F10x%20DSP%20library%2c%20where%20is%20it)，下回来看了看，官方库确实是高度优化的，但是代价是非常固化，不灵活，实用性比较差。说白了就是跑分很好看，真正用那个库就不是那么回事了。主要体现在：
1、它的输入是1024点32bit的数组（以1024FFT为例），那么要用这个库你必须把数据拷贝到数组里面。在实时运算的时候基本上只有双缓冲这一个唯一的选择。而双缓冲是有缓冲切换开销的。我的程序是给个指针直接从循环缓冲区任意位置读数据的，任意缓冲区长度，自动回卷。
2、它用的是基-4的FFT，我用的是最简单的基-2的。基-4的FFT理论上运算量就比基-2的小，速度肯定快，但是代价是FFT点数必须是4^n，如果你要做512点或者2048点的FFT，那么你就没法用官方库了。另外看它的代码，实际上stm32做基-4的FFT寄存器是不大够用的，所以它里面有很多数据倒来倒去的过程，如果寄存器能像64位ARM那样有32个的话，官方库这个程序还可以更快～
3、它的输入输出是等长的，就是说你做1024点的FFT输入必须是1024点，如果你的输入小于这个长度，是没有任何性能提升的。我的程序可以随意设置输入长度，自动补零自动优化，当输入长度小于FFT点数的时候速度可以成倍提升。实际上我工作中用的FFT是4096点的，但是输入数据只有128点。所以这一点优化在实际应用中还是非常有用的。
好了，基本情况就是这样。我之前那个FFT是32位精度的，为了跟官方库比较，也跟着改为16位了。前前后后改了一个礼拜，每天都能发现一些新的地方可以提高速度，搞到现在觉得基本上到头了。也实在是不能再搞了，我觉得自己有点走火入魔了，再搞工作都要丢了～～
成果：视频演示的是跟官方benchmark一样的配置，出，16bit，三角函数表在flash里。视频中关闭显示之后即是纯FFT循环，此时除了FFT之外只有AD，DA以及帧率显示。可以看到实测是365fps，也就是2.74ms，比官方的2.138ms还是差一点，残念。。。作为基-2的FFT，我基本上只能接受这样的结果啦，哎～～～～
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TA的每日心情开心6&天前签到天数: 515 天[LV.9]以坛为家II
很强的技术贴，跟楼主学习了
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又见大神！
纵然万劫不复，纵然相思入骨，
我也待你眉眼如初，岁月如故！
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ddddddddddddddddddd
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好强大。。
没人在乎过程，只在乎结果。
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okokokok ok okoko ok
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我想要一份
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楼主好强啊& && && && &&&
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基本功扎实，自愧不如啊
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Powered by Discuz!startup_stm32f40xx.s:&error:&A3906U:&Malformed&via&file&'.\debug\startup_stm32f40xx._ia'.
在其他电脑可以编译通过，我的电脑编译其他工程也能通过，就这个工程编译出现这个错误，不知是什么原因，有人遇到过吗？
回答： STM32F4编译时错误，网上找了好久也找不到，有人遇到过吗？
听说是文件夹名带有空格的缘故
Q JavaScript报未结束的字符串常量，找了好久还是没找到问题所在！求教各位高手
问题补充：非常感谢各位不吝赐教，结果是传入的字符串中有个'，比如是这样的‘啦啦啦啦啦啦哈‘哈’哈’结果就先结束掉了，解决的方法就是用encodeURIComponent(title)进行转义一下
A 有没有可能是字符串中包含回车换行之类的字符，检查下出问题地方相关的字符串值试试
Q Adobe&Premiere6.5哪里下载啊？我找了好久了！！：（
http://download.lconline.net/show.asp?id=230
/list.asp?id=549
不过是共享软件
Q 哪里有《Qualcomm平台AEE运行机制的深入剖析》文档呀！找了好久了。
楼主，这里&http://d.download.csdn.net/down/1287419/wang1xin
Q 请帮我转换一下.我在网上找了一天半的时间了.没有校验成功的.
值:10&10&10&10&10&10&10&10&10&10&10&10&10&10&10&10&24
结果:49&1B
INT16U&CRC16(&unsigned&char&*sour,unsigned&short&len&)
static&const&unsigned&short&crcPoly&=&0x8005;
unsigned&long&m;
unsigned&short&retCrc&=&0;
while(len--)
m&=&((unsigned&long)retCrc&&&&8)&|&(*sour);
for&(n&=&0;&n&&&8;&n++)
if&((m&&&=&1)&&&0x1000000)
m&^=&((unsigned&long)crcPoly&&&&8);
retCrc&=&(unsigned&short)(m&&&&8);
return&retC
直接照翻：
function&CRC16(const&sour:&array&of&&len:&word):&
&&crcPoly&=&$8005;
&&result&:=&0;
&&for&i&:=&0&to&len&-&1&do
&&&&&&m&:=&result&shl&8&or&sour[i];
&&&&&&for&n&:=&0&to&7&do
&&&&&&&&begin
&&&&&&&&&&m&:=&m&shl&1;
&&&&&&&&&&if&m&and&$1000000&&&&0&then
&&&&&&&&&&&&m&:=&m&xor&crcPoly&shl&8;
&&&&&&result&:=&m&shr&8;
14:13:03,428 ERROR [org.springframework.web.context.ContextLoader] - Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in file [D:\Kyle Zhou\software\apache-tomcat-5.5.23\apache-tomcat-5.5.23\webapps\OA\WEB-INF\classes\context\applicationContext-common.xml]: Invocation o nested exception is org.hibernate.InvalidMappingException: Could not parse mapping document from resource com/oa/model/Organization.hbm.xml
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1338)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:473)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
at java.security.AccessController.doPrivileged(Native Method)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:423)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3764)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4216)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:448)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
Caused by: org.hibernate.InvalidMappingException: Could not parse mapping document from resource com/oa/model/Organization.hbm.xml
at org.hibernate.cfg.Configuration.addResource(Configuration.java:602)
at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1621)
at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1589)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1568)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1542)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1477)
at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:601)
at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:211)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1369)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1335)
... 30 more
Caused by: org.hibernate.InvalidMappingException: Could not parse mapping document from input stream
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:541)
at org.hibernate.cfg.Configuration.addResource(Configuration.java:599)
... 39 more
Caused by: org.dom4j.DocumentException: Connection timed out: connect Nested exception: Connection timed out: connect
at org.dom4j.io.SAXReader.read(SAXReader.java:484)
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:532)
... 40 more
14:13:03,443 ERROR [org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/OA]] - Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in file [D:\Kyle Zhou\software\apache-tomcat-5.5.23\apache-tomcat-5.5.23\webapps\OA\WEB-INF\classes\context\applicationContext-common.xml]: Invocation o nested exception is org.hibernate.InvalidMappingException: Could not parse mapping document from resource com/oa/model/Organization.hbm.xml
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1338)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:473)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
at java.security.AccessController.doPrivileged(Native Method)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:423)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3764)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4216)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:448)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
Caused by: org.hibernate.InvalidMappingException: Could not parse mapping document from resource com/oa/model/Organization.hbm.xml
at org.hibernate.cfg.Configuration.addResource(Configuration.java:602)
at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1621)
at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1589)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1568)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1542)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1477)
at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:601)
at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:211)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1369)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1335)
... 30 more
Caused by: org.hibernate.InvalidMappingException: Could not parse mapping document from input stream
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:541)
at org.hibernate.cfg.Configuration.addResource(Configuration.java:599)
... 39 more
Caused by: org.dom4j.DocumentException: Connection timed out: connect Nested exception: Connection timed out: connect
at org.dom4j.io.SAXReader.read(SAXReader.java:484)
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:532)
... 40 more
14:13:03 org.apache.catalina.core.StandardContext start
严重: Error listenerStart
14:13:03 org.apache.catalina.core.StandardContext start
严重: Context [/OA] startup failed due to previous errors
14:13:03,459 INFO [org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/OA]] - Closing Spring root WebApplicationContext
14:13:04 org.apache.catalina.core.ApplicationContext log
com/oa/model/Organization.hbm.xml配置如下
&hibernate-mapping&
&class table="t_organization" name="com.oa.model.Organization"&
&id access="field" name="id"&
&generator class="native"/&
&property name="name" access="field"/&
&property name="sn" access="field"/&
&property name="description" access="field"/&
&many-to-one column="pid" access="field" name="parent"/&
&set access="field" name="children"&
&key column="pid"/&
&one-to-many class="com.oa.model.Organization"/&
&/hibernate-mapping&
hibernate.cfg.xml的配置又如下。
&hibernate-configuration&
&session-factory&
&property name="hibernate.connection.driver_class"&com.mysql.jdbc.Driver&/property&
&property name="hibernate.connection.url"&jdbc:mysql://localhost:3306/oa2&/property&
&property name="hibernate.connection.username"&root&/property&
&property name="hibernate.connection.password"&1234&/property&
&property name="hibernate.dialect"&org.hibernate.dialect.MySQLDialect&/property&
&property name="hibernate.show_sql"&true&/property&
&property name="hibernate.hbm2ddl.auto"&update&/property&
&mapping resource="com/oa/model/Organization.hbm.xml"/&
&/session-factory&
&/hibernate-configuration&
问题补充：
14:13:03,428 ERROR [org.springframework.web.context.ContextLoader] - Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in file [D:\Kyle Zhou\software\apache-tomcat-5.5.23\apache-tomcat-5.5.23\webapps\OA\WEB-INF\classes\context\applicationContext-common.xml]: Invocation o nested exception is org.hibernate.InvalidMappingException: Could not parse mapping document from resource com/oa/model/Organization.hbm.xml
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1338)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:473)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
at java.security.AccessController.doPrivileged(Native Method)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:423)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3764)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4216)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:448)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
Caused by: org.hibernate.InvalidMappingException: Could not parse mapping document from resource com/oa/model/Organization.hbm.xml
at org.hibernate.cfg.Configuration.addResource(Configuration.java:602)
at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1621)
at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1589)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1568)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1542)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1477)
at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:601)
at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:211)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1369)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1335)
... 30 more
Caused by: org.hibernate.InvalidMappingException: Could not parse mapping document from input stream
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:541)
at org.hibernate.cfg.Configuration.addResource(Configuration.java:599)
... 39 more
Caused by: org.dom4j.DocumentException: Connection timed out: connect Nested exception: Connection timed out: connect
at org.dom4j.io.SAXReader.read(SAXReader.java:484)
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:532)
... 40 more
14:13:03,443 ERROR [org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/OA]] - Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in file [D:\Kyle Zhou\software\apache-tomcat-5.5.23\apache-tomcat-5.5.23\webapps\OA\WEB-INF\classes\context\applicationContext-common.xml]: Invocation o nested exception is org.hibernate.InvalidMappingException: Could not parse mapping document from resource com/oa/model/Organization.hbm.xml
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1338)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:473)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
at java.security.AccessController.doPrivileged(Native Method)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:423)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3764)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4216)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:448)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
Caused by: org.hibernate.InvalidMappingException: Could not parse mapping document from resource com/oa/model/Organization.hbm.xml
at org.hibernate.cfg.Configuration.addResource(Configuration.java:602)
at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1621)
at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1589)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1568)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1542)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1477)
at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:601)
at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:211)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1369)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1335)
... 30 more
Caused by: org.hibernate.InvalidMappingException: Could not parse mapping document from input stream
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:541)
at org.hibernate.cfg.Configuration.addResource(Configuration.java:599)
... 39 more
Caused by: org.dom4j.DocumentException: Connection timed out: connect Nested exception: Connection timed out: connect
at org.dom4j.io.SAXReader.read(SAXReader.java:484)
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:532)
... 40 more
14:13:03 org.apache.catalina.core.StandardContext start
严重: Error listenerStart
14:13:03 org.apache.catalina.core.StandardContext start
严重: Context [/OA] startup failed due to previous errors
14:13:03,459 INFO [org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/OA]] - Closing Spring root WebApplicationContext
14:13:04 org.apache.catalina.core.ApplicationContext log
com/oa/model/Organization.hbm.xml配置如下
&?xml version="1.0" encoding="ISO-8859-1"?&
&!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 2.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd"&
&hibernate-mapping&
&class table="t_organization" name="com.oa.model.Organization"&
&id access="field" name="id"&
&generator class="native"/&
&property name="name" access="field"/&
&property name="sn" access="field"/&
&property name="description" access="field"/&
&many-to-one column="pid" access="field" name="parent"/&
&set access="field" name="children"&
&key column="pid"/&
&one-to-many class="com.oa.model.Organization"/&
&/hibernate-mapping&
hibernate.cfg.xml的配置又如下。
&!DOCTYPE hibernate-configuration
PUBLIC "-//Hibernate/Hibernate Configuration DTD//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"&
&hibernate-configuration&
&session-factory&
&property name="hibernate.connection.driver_class"&com.mysql.jdbc.Driver&/property&
&property name="hibernate.connection.url"&jdbc:mysql://localhost:3306/oa2&/property&
&property name="hibernate.connection.username"&root&/property&
&property name="hibernate.connection.password"&1234&/property&
&property name="hibernate.dialect"&org.hibernate.dialect.MySQLDialect&/property&
&property name="hibernate.show_sql"&true&/property&
&property name="hibernate.hbm2ddl.auto"&update&/property&
&mapping resource="com/oa/model/Organization.hbm.xml"/&
&/session-factory&
&/hibernate-configuration&
ERROR [org.springframework.web.context.ContextLoader] - Context initialization failed&
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in file [D:\Kyle Zhou\software\apache-tomcat-5.5.23\apache-tomcat-5.5.23\webapps\OA\WEB-INF\classes\context\applicationContext-common.xml]: Invocation o nested exception is org.hibernate.InvalidMappingException: Could not parse mapping document from resource com/oa/model/Organization.hbm.xml&
无效的映射配置。Organization.hbm.xml& 这个文件里面有配置问题
sessionFactory 定义失败
Q 我的邮箱是：
已发送……
ABAP4&编程指南&请用&OutExpress接收并合并邮箱！(此邮件已分拆)
不是我偷懒，是真的没有找到，还请帮忙，谢谢！
A 可以下载servelt2_2-spec.pdf
/products/servlet/2.2/
Q 请问一下,在ScrollBox中动态创建的Image控件怎样获取其座标,并非Image.Left或Image.Top,ScrollBox有滚动条,无法获取超出屏幕的位置坐标.
或者是获取动态创建的Image控件与ScrollBox的左边距和上边距.谢谢了.
ScrollBox1.HorzScrollBar.Position&&水平滚动条移动距离
ScrollBox1.VertScrollBar.Position&&竖直滚动条移动距离
这两个值加上Image.Left或者Top就可以得到相对Image相对ScrollBox1顶部的位置了
Q 异常：Cannot&open&connection
org.springframework.dao.DataAccessResourceFailureException:&Cannot&open&connecti
&nested&exception&is&org.hibernate.exception.JDBCConnectionException:&Cannot
open&connection
&&&&&&&&at&org.springframework.orm.hibernate3.SessionFactoryUtils.convertHiberna
teAccessException(SessionFactoryUtils.java:612)
&&&&&&&&at&org.springframework.orm.hibernate3.HibernateAccessor.convertHibernate
AccessException(HibernateAccessor.java:412)
&&&&&&&&at&org.springframework.orm.hibernate3.HibernateTemplate.doExecute(Hibern
ateTemplate.java:424)
&&&&&&&&at&org.springframework.orm.hibernate3.HibernateTemplate.executeWithNativ
eSession(HibernateTemplate.java:374)
&&&&&&&&at&org.springframework.orm.hibernate3.HibernateTemplate.save(HibernateTe
mplate.java:690)
&&&&&&&&at&mon.dao.BaseDao.save(BaseDao.java:186)
&&&&&&&&at&com.wisoft.fzjdex.dao.InfTableInDAO.saveInfLawexecutor(InfTableInDAO.
&&&&&&&&at&com.wisoft.fzjdex.bo.InfTableManager.saveInfLawexecutor(InfTableManag
er.java:85)
&&&&&&&&at&com.wisoft.fzjdex.bo.InfTableManager.saveInfLawexecutor(InfTableManag
er.java:374)
&&&&&&&&at&com.wisoft.fzjdex.bo.InfTableManager.saveFzjd(InfTableManager.java:35
&&&&&&&&at&sun.reflect.NativeMethodAccessorImpl.invoke0(Native&Method)
&&&&&&&&at&sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
&&&&&&&&at&sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
&&&&&&&&at&java.lang.reflect.Method.invoke(Method.java:597)
&&&&&&&&at&com.wisoft.framework.jm.utils.SpringJobModel.invokeMethod(SpringJobMo
del.java:51)
&&&&&&&&at&com.wisoft.framework.jm.utils.SpringJobModel.execute(SpringJobModel.j
&&&&&&&&at&org.quartz.core.JobRunShell.run(JobRunShell.java:202)
&&&&&&&&at&org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.j
Caused&by:&org.hibernate.exception.JDBCConnectionException:&Cannot&open&connecti
&&&&&&&&at&org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.j
&&&&&&&&at&org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelp
er.java:66)
&&&&&&&&at&org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelp
er.java:52)
&&&&&&&&at&org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager
.java:449)
&&&&&&&&at&org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.
&&&&&&&&at&org.hibernate.jdbc.AbstractBatcher.prepareStatement(AbstractBatcher.j
&&&&&&&&at&org.hibernate.jdbc.AbstractBatcher.prepareStatement(AbstractBatcher.j
&&&&&&&&at&org.hibernate.jdbc.AbstractBatcher.prepareBatchStatement(AbstractBatc
her.java:244)
&&&&&&&&at&org.hibernate.persister.entity.AbstractEntityPersister.insert(Abstrac
tEntityPersister.java:2252)
&&&&&&&&at&org.hibernate.persister.entity.AbstractEntityPersister.insert(Abstrac
tEntityPersister.java:2688)
&&&&&&&&at&org.hibernate.action.EntityInsertAction.execute(EntityInsertAction.ja
&&&&&&&&at&org.hibernate.engine.ActionQueue.execute(ActionQueue.java:279)
&&&&&&&&at&org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:263)
&&&&&&&&at&org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:167)
&&&&&&&&at&org.hibernate.event.def.AbstractFlushingEventListener.performExecutio
ns(AbstractFlushingEventListener.java:321)
&&&&&&&&at&org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlus
hEventListener.java:50)
&&&&&&&&at&org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1027)
&&&&&&&&at&org.springframework.orm.hibernate3.HibernateAccessor.flushIfNecessary
(HibernateAccessor.java:390)
&&&&&&&&at&org.springframework.orm.hibernate3.HibernateTemplate.doExecute(Hibern
ateTemplate.java:420)
&&&&&&&&...&15&more
Caused&by:&java.sql.SQLRecoverableException:&Io&异常:&The&Network&Adapter&could
not&establish&the&connection
&&&&&&&&at&oracle.jdbc.driver.SQLStateMapping.newSQLException(SQLStateMapping.ja
&&&&&&&&at&oracle.jdbc.driver.DatabaseError.newSQLException(DatabaseError.java:1
&&&&&&&&at&oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java
&&&&&&&&at&oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java
&&&&&&&&at&oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java
&&&&&&&&at&oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:411)
&&&&&&&&at&oracle.jdbc.driver.PhysicalConnection.&init&(PhysicalConnection.java:
&&&&&&&&at&oracle.jdbc.driver.T4CConnection.&init&(T4CConnection.java:202)
&&&&&&&&at&oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtensio
n.java:33)
&&&&&&&&at&oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:474)
&&&&&&&&at&java.sql.DriverManager.getConnection(DriverManager.java:582)
&&&&&&&&at&java.sql.DriverManager.getConnection(DriverManager.java:154)
&&&&&&&&at&org.logicalcobwebs.proxool.DefaultConnectionBuilder.buildConnection(D
efaultConnectionBuilder.java:39)
&&&&&&&&at&org.logicalcobwebs.proxool.Prototyper.buildConnection(Prototyper.java
&&&&&&&&at&org.logicalcobwebs.proxool.ConnectionPool.getConnection(ConnectionPoo
l.java:217)
&&&&&&&&at&org.logicalcobwebs.proxool.ProxoolDriver.connect(ProxoolDriver.java:8
&&&&&&&&at&java.sql.DriverManager.getConnection(DriverManager.java:582)
&&&&&&&&at&java.sql.DriverManager.getConnection(DriverManager.java:154)
&&&&&&&&at&org.springframework.jdbc.datasource.DriverManagerDataSource.getConnec
tionFromDriverManager(DriverManagerDataSource.java:174)
&&&&&&&&at&org.springframework.jdbc.datasource.DriverManagerDataSource.getConnec
tionFromDriver(DriverManagerDataSource.java:165)
&&&&&&&&at&org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.get
ConnectionFromDriver(AbstractDriverBasedDataSource.java:149)
&&&&&&&&at&org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.get
Connection(AbstractDriverBasedDataSource.java:119)
&&&&&&&&at&org.springframework.orm.hibernate3.LocalDataSourceConnectionProvider.
getConnection(LocalDataSourceConnectionProvider.java:82)
&&&&&&&&at&org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager
.java:446)
&&&&&&&&...&30&more
异常：Cannot&open&connection&
这一句就可以看出问题了，重新配置部署一下，试试