Java Spring MVC堆栈溢出错误-尝试从数据库获取数据
我有一个表单可以插入数据库,但是在执行插入之前,我会检查是否存在记录。我无法插入记录,并且出现StackOverflow错误 有人能告诉我是什么导致了这个错误,我能做些什么来消除它吗?如果我删除了复选框,代码将很好地执行。这就好像代码此时不想访问数据库一样。我已经创建了不同类型的函数来执行he check here的记录,但在这一点上,我一直得到相同的错误StackOverflow 代码Java Spring MVC堆栈溢出错误-尝试从数据库获取数据,java,spring,spring-mvc,stack-overflow,Java,Spring,Spring Mvc,Stack Overflow,我有一个表单可以插入数据库,但是在执行插入之前,我会检查是否存在记录。我无法插入记录,并且出现StackOverflow错误 有人能告诉我是什么导致了这个错误,我能做些什么来消除它吗?如果我删除了复选框,代码将很好地执行。这就好像代码此时不想访问数据库一样。我已经创建了不同类型的函数来执行he check here的记录,但在这一点上,我一直得到相同的错误StackOverflow 代码 public String getMonitoringStDate(Integer crimeRecNo,
public String getMonitoringStDate(Integer crimeRecNo, Integer socialSecurityNumber){
//select the minimum start date in event there is several records although this will not be allowed
String sql = "select IFNULL(min(monitoringStDate),'0') as monitoringStDate from tblmonitoring where crimeRecNo = ? and socialSecurityNumber = ?";
String monitoringStDate = (String)getJdbcTemplate().queryForObject(sql, new Object[]{crimeRecNo,socialSecurityNumber}, String.class);
return monitoringStDate;
}
com.crimetrack.service.MonitoringManager.getMonitoringStDate(MonitoringManager.java:60)
用于getMonitoringStDate的DAO
public String getMonitoringStDate(Integer crimeRecNo, Integer socialSecurityNumber){
//select the minimum start date in event there is several records although this will not be allowed
String sql = "select IFNULL(min(monitoringStDate),'0') as monitoringStDate from tblmonitoring where crimeRecNo = ? and socialSecurityNumber = ?";
String monitoringStDate = (String)getJdbcTemplate().queryForObject(sql, new Object[]{crimeRecNo,socialSecurityNumber}, String.class);
return monitoringStDate;
}
我还注册了以下听众:
听众
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<listener>
<listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
</listener>
控制器
if(result.hasErrors()){
myMonitoringTypeList.put("monitoringTypeList",this.monitoringTypeManager.getListOfMonitoringType());
model.addAttribute("icon", "ui-icon ui-icon-circle-close");
model.addAttribute("results", "Error: Unable to Save Record!");
model.addAttribute("monitoringType",myMonitoringTypeList);
model.addAttribute("monitoring",monitoring);
model.addAttribute("records", session.getAttribute("records"));
model.addAttribute("crimeRecNo",session.getAttribute("crimeRecNo"));
//return the user to the page they were on initially not the first page but the one with the error
return new ModelAndView("monitoringList","page",session.getAttribute("page"));
}else{
int crimeRecNo = monitoring.getCrimeRecNo();
int socialSecurityNumber = monitoring.getSocialSecurityNumber();
logger.info("No errors going to process records");
logger.info("CrimeRecNo is " + monitoring.getCrimeRecNo());
logger.info("SocialSecurity Number is " + monitoring.getSocialSecurityNumber());
//check if a record already exists. if one exist do an update else do an insert
//to check if the record exists we can simply get the start date
String dbMonitoringStDate = monitoringManager.getMonitoringStDate(crimeRecNo,socialSecurityNumber);
logger.info("The dbMonitoringStDate is " + dbMonitoringStDate);
if(monitoringManager.hasMonitoringRecord(crimeRecNo, socialSecurityNumber)){
logger.info("Has monitoring record");
//do an update
monitoringManager.updateMonitoringRecord(monitoring);
model.addAttribute("icon", "ui-icon ui-icon-circle-check");
model.addAttribute("results", "Record Was Updated");
}else {
logger.info("Does not have monitoring record");
//do an insert
monitoringManager.saveMonitoringRecord(monitoring);
model.addAttribute("icon", "ui-icon ui-icon-circle-check");
model.addAttribute("results", "Record Was Saved");
}
7035 [http-bio-8084-exec-1] DEBUG org.springframework.web.servlet.DispatcherServlet - Cleared thread-bound request context: org.apache.catalina.connector.RequestFacade@6f138f45
7035 [http-bio-8084-exec-1] DEBUG org.springframework.web.servlet.DispatcherServlet - Could not complete request
org.springframework.web.util.NestedServletException: Handler processing failed; nested exception is java.lang.StackOverflowError
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:972)
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:647)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:936)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.StackOverflowError
at com.crimetrack.service.MonitoringManager.getMonitoringStDate(MonitoringManager.java:60)
at com.crimetrack.service.MonitoringManager.getMonitoringStDate(MonitoringManager.java:60)
at com.crimetrack.service.MonitoringManager.getMonitoringStDate(MonitoringManager.java:60)
at com.crimetrack.service.MonitoringManager.getMonitoringStDate(MonitoringManager.java:60)
at com.crimetrack.service.MonitoringManager.getMonitoringStDate(MonitoringManager.java:60)
错误
if(result.hasErrors()){
myMonitoringTypeList.put("monitoringTypeList",this.monitoringTypeManager.getListOfMonitoringType());
model.addAttribute("icon", "ui-icon ui-icon-circle-close");
model.addAttribute("results", "Error: Unable to Save Record!");
model.addAttribute("monitoringType",myMonitoringTypeList);
model.addAttribute("monitoring",monitoring);
model.addAttribute("records", session.getAttribute("records"));
model.addAttribute("crimeRecNo",session.getAttribute("crimeRecNo"));
//return the user to the page they were on initially not the first page but the one with the error
return new ModelAndView("monitoringList","page",session.getAttribute("page"));
}else{
int crimeRecNo = monitoring.getCrimeRecNo();
int socialSecurityNumber = monitoring.getSocialSecurityNumber();
logger.info("No errors going to process records");
logger.info("CrimeRecNo is " + monitoring.getCrimeRecNo());
logger.info("SocialSecurity Number is " + monitoring.getSocialSecurityNumber());
//check if a record already exists. if one exist do an update else do an insert
//to check if the record exists we can simply get the start date
String dbMonitoringStDate = monitoringManager.getMonitoringStDate(crimeRecNo,socialSecurityNumber);
logger.info("The dbMonitoringStDate is " + dbMonitoringStDate);
if(monitoringManager.hasMonitoringRecord(crimeRecNo, socialSecurityNumber)){
logger.info("Has monitoring record");
//do an update
monitoringManager.updateMonitoringRecord(monitoring);
model.addAttribute("icon", "ui-icon ui-icon-circle-check");
model.addAttribute("results", "Record Was Updated");
}else {
logger.info("Does not have monitoring record");
//do an insert
monitoringManager.saveMonitoringRecord(monitoring);
model.addAttribute("icon", "ui-icon ui-icon-circle-check");
model.addAttribute("results", "Record Was Saved");
}
7035 [http-bio-8084-exec-1] DEBUG org.springframework.web.servlet.DispatcherServlet - Cleared thread-bound request context: org.apache.catalina.connector.RequestFacade@6f138f45
7035 [http-bio-8084-exec-1] DEBUG org.springframework.web.servlet.DispatcherServlet - Could not complete request
org.springframework.web.util.NestedServletException: Handler processing failed; nested exception is java.lang.StackOverflowError
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:972)
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:647)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:936)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.StackOverflowError
at com.crimetrack.service.MonitoringManager.getMonitoringStDate(MonitoringManager.java:60)
at com.crimetrack.service.MonitoringManager.getMonitoringStDate(MonitoringManager.java:60)
at com.crimetrack.service.MonitoringManager.getMonitoringStDate(MonitoringManager.java:60)
at com.crimetrack.service.MonitoringManager.getMonitoringStDate(MonitoringManager.java:60)
at com.crimetrack.service.MonitoringManager.getMonitoringStDate(MonitoringManager.java:60)
查看您的方法定义:
public String getMonitoringStDate(Integer crimeRecNo,
Integer socialSecurityNumber) throws Exception {
return this.getMonitoringStDate(crimeRecNo, socialSecurityNumber);
}
这个方法所做的唯一事情就是调用它自己。显然,您有一个无限递归循环。向我们展示相关代码。如堆栈跟踪所示,错误出现在com.crimetrack.service.MonitoringManager.getMonitoringStDate()中的第60行。@JBNizet问题已更新