这是什么情况呀？从tomcat中启动后，无任何报错，但是页面中的el表达式的值无法显示
//controller层
package com.emp.controller;
import com.emp.pojo.Staff;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import com.emp.service.StaffService;
@Controller
public class StaffController {
@Autowired
private StaffService staffService;
@RequestMapping("/test")
public ModelAndView selectByPrimaryKey(Integer staffId) {
Staff staff = staffService.selectStaffKey(3);
ModelAndView modelAndView = new ModelAndView();
modelAndView.addObject("staff", staff);
modelAndView.setViewName("test");
System.out.println("员工id:" + staff.getStaffId());
System.out.println("员工name:" + staff.getName());
System.out.println("员工sex:" + staff.getSex());
System.out.println("员工dept_id:" + staff.getDeptId());
return modelAndView;
}
}
spring-mvc.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: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.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
<context:component-scan base-package="com.emp.controller" />
<mvc:annotation-driven />
<mvc:default-servlet-handler/>
<!-- 3.配置jsp 显示ViewResolver -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8" isELIgnored="false"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>员工管理系统</title>
</head>
<body>
<table border="1">
<tr>
<th>工号</th>
<th>姓名</th>
<th>性别</th>
<th>部门号</th>
</tr>
<tr>
<td>${staff.staff_id}</td>
<td>${staff.name}</td>
<td>${staff.sex}</td>
<td>${staff.dept_id}</td>
</tr>
</table>
</body>
</html>
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
version="4.0">
<display-name>Archetype Created Web Application</display-name>
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 配置springMVC需要加载的配置文件 spring-dao.xml,spring-service.xml,spring-mvc.xml
Mybatis - > spring -> springmvc -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-*.xml</param-value>
</init-param>
</servlet>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:applicationContext.xml</param-value>
</context-param>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<!-- 默认匹配所有的请求 -->
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
