很抱歉问我在许多答案中看到的那个错误，但我无法解决我的错误，所以请帮助我。我的要求是根据id no我使用注释在我的控制器中获取参数来获取员工，但我不知道为什么会出现这个错误
SEVERE: Servlet.service() for servlet [jsp] in context with path [/EmployeeWebSpring] threw exception [java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'empDetails' available as request attribute] with root cause
java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'empDetails' available as request attribute
at org.springframework.web.servlet.support.BindStatus.<init>(BindStatus.java:141)
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getBindStatus(AbstractDataBoundFormElementTag.java:178)
at org.springframework.web.servlet.tags.form.AbstractDataBoundFormElementTag.getPropertyPath(AbstractDataBoundFormElementTag.java:198)
at org.springframework.web.servlet.tags.form.LabelTag.autogenerateFor(LabelTag.java:129)
at org.springframework.web.servlet.tags.form.LabelTag.resolveFor(LabelTag.java:119)
at org.springframework.web.servlet.tags.form.LabelTag.writeTagContent(LabelTag.java:89)
at org.springframework.web.servlet.tags.form.AbstractFormTag.doStartTagInternal(AbstractFormTag.java:102)
at org.springframework.web.servlet.tags.RequestContextAwareTag.doStartTag(RequestContextAwareTag.java:79)
at org.apache.jsp.Search_jsp._jspx_meth_form_005flabel_005f0(Search_jsp.java:229)
at org.apache.jsp.Search_jsp._jspx_meth_form_005fform_005f0(Search_jsp.java:157)
at org.apache.jsp.Search_jsp._jspService(Search_jsp.java:95)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
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:224)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
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:987)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:307)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
3 Jan, 2013 2:23:33 PM org.apache.jasper.compiler.TldLocationsCache tldScanJar
INFO: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
3 Jan, 2013 2:23:33 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [jsp] in context with path [/EmployeeWebSpring] threw exception [An exception occurred processing JSP page /Search.jsp at line 26
23:
24:
25: <tr>
26: <td><form:label path="employeeNo">Employee_ID</form:label> <form:input
27: path="employeeNo" /></td>
28: <td><input type="submit" name="method" value="FindById" /></td>
29: </tr>
Stacktrace:] with root cause
这是我的控制器
包 com.nousinfo.tutorial.controllers；
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.dao.EmptyResultDataAccessException;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;
import com.nousinfo.tutorial.service.impl.EmployeeServiceImpl;
import com.nousinfo.tutorial.service.model.EmployeeBO;
@Controller
public class SearchEmployeeController {
private EmployeeServiceImpl employeeServiceImpl;
public void setEmployeeServiceImpl(EmployeeServiceImpl employeeServiceImpl) {
this.employeeServiceImpl = employeeServiceImpl;
}
@ModelAttribute("empDetails")
@RequestMapping(value="/search.spring" ,method=RequestMethod.POST)
public ModelAndView searchByEmpNo(@RequestParam("employeeNo") long employeeNo) throws Exception {
EmployeeBO empDetails = null;
try {
if (employeeServiceImpl.getEmployee(employeeNo) != null) {
empDetails = employeeServiceImpl.getEmployee(employeeNo);
}
} catch (EmptyResultDataAccessException e) {
return new ModelAndView("successSingleEmp", "empDetails",
empDetails);
}
return new ModelAndView("successSingleEmp", "empDetails", empDetails);
}
}
这是我的jsp文件
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%>
<%@ taglib uri="http://www.springframework.org/tags" prefix="spring"%>
<%@ taglib uri="http://www.springframework.org/tags/form" prefix="form"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<fmt:setBundle basename="ApplicationResources" />
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Employee Search Page</title>
</head>
<body>
<form:form action="/search.spring" method="post" modelAttribute="empDetails">
<table border="0">
<tr>
<td><form:label path="employeeNo">Employee_ID</form:label> <form:input
path="employeeNo" /></td>
<td><input type="submit" name="method" value="FindById" /></td>
</tr>
<tr>
<td><form:label path="empName">Employee_Name</form:label>
<form:input path="empName"/></td>
<td><input type="submit" name="method" value="FindByName" /></td>
</tr>
<tr>
<td><form:label path="deptNo">Employee_Name</form:label>
<form:input path="deptNo"/></td>
<td><input type="submit" name="method" value="FindByDeptNO" /></td>
</tr>
<tr>
<td colspan="2" align="center"><font size=3>For
Searching the employees by<b>Employee Name</b><br />you can use %
match all the records with the given pattern
</font><br /> <font size="2"> <i>e.g <b> for search by</b>EmployeeName<br />
matches alL the employees whose name starts with character <b>S</b></i></font></td>
</tr>
</table>
</form:form>
</body>
</html>
这是我的 webConfig-context.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">
<context:annotation-config />
<context:component-scan base-package="com.nousinfo.tutorial." />
<mvc:annotation-driven />
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver"
p:prefix="/WEB-INF/"
p:suffix=".jsp" />
<!-- configuring BeanNameViewResolver -->
<bean class="org.springframework.web.servlet.view.BeanNameViewResolver"></bean>
<!-- configuring exception Resolver -->
<bean
class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
<property name="exceptionMappings">
<props>
<prop key="org.springframework.dao.DAOException">dberrorView</prop>
<prop key="java.lang.NumberFormatException">notANumber</prop>
</props>
</property>
</bean>
<!-- configuring views required to render the view for /search.spring -->
<bean name="successSingleEmp" class="org.springframework.web.servlet.view.JstlView">
<property name="url" value="/WEB-INF/EmployeeDetail.jsp" />
</bean>
<bean name="successMultipleEmps" class="org.springframework.web.servlet.view.JstlView">
<property name="url" value="/WEB-INF/EmployeeList.jsp" />
</bean>
<bean name="dberrorView" class="org.springframework.web.servlet.view.JstlView">
<property name="url" value="/WEB-INF/DBError.jsp" />
</bean>
<bean name="notANumber" class="org.springframework.web.servlet.view.JstlView">
<property name="url" value="/WEB-INF/NotANumberError.jsp" />
</bean>
<!-- CONFIGURING THE MEASSAGE RESOURCES FOR THIS APPLICTION CONTEXT -->
<bean id="messageSource"
class="org.springframework.context.support.ResourceBundleMessageSource">
<property name="basename" value="/com/nousinfo/resources/ApplicationResources" />
</bean>
</beans>
这是 web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
id="WebApp_ID" version="2.5">
<display-name>EmployeeWebSpring</display-name>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>WEB-INF/webConfig-context.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- The front controller of this Spring Web application, responsible for
handling all application requests -->
<servlet>
<servlet-name>ds</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/services-context.xml, /WEB-INF/webConfig-context.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<!-- Map all requests to the DispatcherServlet for handling -->
<servlet-mapping>
<servlet-name>ds</servlet-name>
<url-pattern>*.spring</url-pattern>
</servlet-mapping>
</web-app>