JEECG-创建新表和类后的一些测试异常

解决Spring MVC访问异常及错误处理
最新推荐文章于 2021-06-09 18:01:49 发布
原创 最新推荐文章于 2021-06-09 18:01:49 发布 · 4.8k 阅读 · 1 ·
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本文讨论了在配置Spring MVC过程中遇到的路径访问问题，重点解释了如何通过调整`spring-mvc-hibernate.xml`文件中的`packagesToScan`属性来解决新建类未包含在原有包路径中的情况。此外，文章还分析了导致`java.lang.NullPointerException`错误的原因及解决策略。

如果配置好了路径，访问的时候出现如下提示：

那么要检测：spring-mvc-hibernate.xml中

  <!-- 注解方式配置 -->
  <property name="packagesToScan">
   <list>
    <value>jeecg.system.pojo.*</value>
    <value>jeecg.demo.entity.*</value>
    <value>jeecg.test.entity.*</value>
    <value>jeecg.cgform.entity.*</value>
    <!-- 如果自己用代码生成器生成得到entity类，并且没有包含在已有的包里，那么需要自己在此添加 -->
    <value>jeecg.gwc.db.entity.*</value>
    <value>jeecg.gwc.db.entity.dbcont.*</value>
   </list>
  </property>



如果是新建的类没有包含在原有的包路径中，那么需要添加新的value值


并且后天显示如下错误：


[org.hibernate.engine.jdbc.internal.proxy.ConnectionProxyHandler]HHH000163: Logical connection releasing its physical connection
[org.jeecgframework.core.common.exception.MyExceptionHandler]java.lang.NullPointerException
	at org.jeecgframework.core.common.dao.impl.GenericBaseCommonDao.getDataGridReturn(GenericBaseCommonDao.java:651)
	at org.jeecgframework.core.common.service.impl.CommonServiceImpl.getDataGridReturn(CommonServiceImpl.java:238)
	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:597)
	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:318)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
	at $Proxy71.getDataGridReturn(Unknown Source)
	at jeecg.gwc.controller.dbcont.DbUnitInfoController.datagrid(DbUnitInfoController.java:83)
	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:597)
	at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)
	at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:436)
	at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:424)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:789)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:140)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.springframework.orm.hibernate4.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:119)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
	at java.lang.Thread.run(Thread.java:619)

[org.springframework.web.servlet.DispatcherServlet]Handler execution resulted in exception - forwarding to resolved error view: ModelAndView: reference to view with name 'common/error'; model is {exceptionMessage=java.lang.NullPointerException
	at org.jeecgframework.core.common.dao.impl.GenericBaseCommonDao.getDataGridReturn(GenericBaseCommonDao.java:651)
	at org.jeecgframework.core.common.service.impl.CommonServiceImpl.getDataGridReturn(CommonServiceImpl.java:238)
	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:597)
	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:318)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
	at $Proxy71.getDataGridReturn(Unknown Source)
	at jeecg.gwc.controller.dbcont.DbUnitInfoController.datagrid(DbUnitInfoController.java:83)
	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:597)
	at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)
	at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:436)
	at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:424)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:789)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:140)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.springframework.orm.hibernate4.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:119)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
	at java.lang.Thread.run(Thread.java:619)
, ex=java.lang.NullPointerException}
java.lang.NullPointerException
	at org.jeecgframework.core.common.dao.impl.GenericBaseCommonDao.getDataGridReturn(GenericBaseCommonDao.java:651)
	at org.jeecgframework.core.common.service.impl.CommonServiceImpl.getDataGridReturn(CommonServiceImpl.java:238)
	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:597)
	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:318)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
	at $Proxy71.getDataGridReturn(Unknown Source)
	at jeecg.gwc.controller.dbcont.DbUnitInfoController.datagrid(DbUnitInfoController.java:83)
	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:597)
	at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)
	at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:436)
	at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:424)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:789)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:140)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.springframework.orm.hibernate4.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:119)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
	at java.lang.Thread.run(Thread.java:619)
[org.springframework.web.servlet.DispatcherServlet]Rendering view [org.springframework.web.servlet.view.JstlView: name 'common/error'; URL [/webpage/common/error.jsp]] in DispatcherServlet with name 'springMvc'
[org.springframework.web.servlet.view.JstlView]Rendering view with name 'common/error' with model {exceptionMessage=java.lang.NullPointerException
	at org.jeecgframework.core.common.dao.impl.GenericBaseCommonDao.getDataGridReturn(GenericBaseCommonDao.java:651)
	at org.jeecgframework.core.common.service.impl.CommonServiceImpl.getDataGridReturn(CommonServiceImpl.java:238)
	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:597)
	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:318)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
	at $Proxy71.getDataGridReturn(Unknown Source)
	at jeecg.gwc.controller.dbcont.DbUnitInfoController.datagrid(DbUnitInfoController.java:83)
	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:597)
	at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)
	at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:436)
	at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:424)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:789)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:140)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.springframework.orm.hibernate4.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:119)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
	at java.lang.Thread.run(Thread.java:619)
, ex=java.lang.NullPointerException} and static attributes {}




 




 


                

        

    

  



    



                



	

		

			

				
					
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					10-21
				

			

		

		

			
				
 步骤3：创建测试计划  - 打开JMeter，默认会创建一个测试计划。   步骤4：添加线程组  - 右键测试计划 -> 添加 -> 线程(用户) -> 线程组  - 设置线程数（用户数）、Ramp-up时间（秒）、循环次数等。   步骤5：添加...

			
		

	





	

		

			

				
					
第三步：JeecgBoot集成DeepSeek模型引入 jeecg-boot-starter-chatgpt 依赖（版本要求 3.7.3+）    <!-- chatgpt -->    <dependency>       <groupId>org.jeecgframework.boot</groupId>       <artifactId>jeecg-boot-starter-chatgpt</artifactId>       <version>3.7.3</version>    </dependency>123456修改yml配置    jeecg:      # AI模型      ai-chat:        enabled: true        apiKey: ??        model: deepseek-chat        apiHost: https://api.deepseek.com        timeout: 60

				
			

			

				

					03-16
				

			

		

		

			
				
### JeecgBoot集成DeepSeek模型并配置`jeecg-boot-starter-chatgpt`依赖  #### 一、添加`jeecg-boot-starter-chatgpt`依赖 在项目的`pom.xml`文件中引入`jeecg-boot-starter-chatgpt`依赖，确保版本号为3.7.3及以上...

			
		

	





	

		

			

				
					
HandlerExceptionResolve异常处理

				
			

			

				

					FourZeroZero's home
				

				

					07-18
					
					2385
					
				

			

		

		

			
				
通过实现HandlerExceptionResolver接口来捕获异常 该接口只有一个方法resolveException。
在方法resolveException实现中 返回null可以让后续的拦截器进行处理 ：
org.springframework.web.servlet.DispatcherServlet#processHandlerException方法中循环所以的HandlerExceptionResolver实现 当resolveException返回不为null后 直接break
如果Han

			
		

	





	

		

			

				
					
Hibernate懒加载错误的处理方案

				
			

			

				

					欧阳北鼻的博客
				

				

					06-27
					
					389
					
				

			

		

		

			
				
懒加载错误的处理方案:

(今天写项目突然出现懒加载的错误以前没记录过今天记录一下！！！！)

懒加载错误：

Exception occurred during processing request: org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: cn.it...

			
		

	





	

		

			

				
					
AMR 转mp3 失败

				
			

			

				

					weixin_30273931的博客
				

				

					06-10
					
					290
					
				

			

		

		

			
				
private void changeToMp3(String sourcePath) {
        File source = new File(sourcePath);

        String mp3TargetPath = sourcePath.substring(0, sourcePath.lastIndexOf(".")) + ".mp3";
   ...

			
		

	





	

		

			

				
					
报错java.lang.ClassCastException: java.lang.Long cannot be cast to java.lang.String解决踩坑

				
			

			

				

					xiaobozhang1993的博客
				

				

					06-09
					
					2万+
					
				

			

		

		

			
				
service传参调用mapper，报错java.lang.ClassCastException: java.lang.Long cannot be cast to java.lang.String


			
		

	





	

		

			

				
					
LogicalConnection异常的解决

				
			

			

				

					sfhcdsn的专栏
				

				

					03-13
					
					1592
					
				

			

		

		

			
				
详细报错如下：
Caused by: java.lang.ClassCastException: weblogic.jdbc.wrapper.JTAConnection_weblogic_jdbc_wrapper_XAConnection_oracle_jdbc_driver_LogicalConnection cannot be cast to oracle.jdbc.OracleConnec

			
		

	





	

		

			

				
					
Hibernate JPA 中配置Ehcache二级缓存

				
			

			

				

					Java高知社区
				

				

					09-02
					
					9125
					
				

			

		

		

			
				
在Hibernate3 JPA里配置了一下非分布式环境的二级缓存，效果不错。具体过程如下：

 

1， 需要引入的jar包



      http://ehcache.org/downloads/catalog 下载的包里已经包含了简单的例子和javadoc

 

      ehcache-core-2.4.6.jar （必需）

      ehcache-

			
		

	





	

		

			

				
					
jeecg 增删改查 后台代码

				
			

			

				

					songzhiyong1314的博客
				

				

					08-09
					
					4775
					
				

			

		

		

			
				
package com.ps.application.controller;


import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.UUID;


import javax.servlet.http.HttpServletRequest

			
		

	





	

		

			

				
					
【技术文档】jeecg3.7-maven搭建好开发环境入门

				
			

			

				

					weixin_34087503的博客
				

				

					08-11
					
					352
					
				

			

		

		

			
				

JEECG 微云高速开发平台（3.7）Maven版本号手把手入门手冊 官方标准开发工具：1.IDE        Eclipse Java EE IDE for Web Developers.        Version: Helios Release        Build id: 20100617-14152.JDK1.73.Tomcat64.Maven项目构建5.执行Mysql脚本 ...

			
		

	



              




          




        



    





    



      

      

        
      

      





	

		
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