spring和springMVC集成
在web.xml配置前端springMVC前端控制器（总控）
<?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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0">
<!-- 配置字符编码过滤器 -->
<filter>
<filter-name>CharacterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- 配置前端控制器 -->
<servlet>
<servlet-name>MVC</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<!-- 读取配置文件
问题：有多个spring相关配置文件如何读取
如 ：spring.xml 和springmvc.xml
解决方案：
方案一：直接使用 统配 * 可以读取多个有相同前缀的文件
<param-value>classpath:spring*.xml</param-value>
方案二：先读取一个配置文件 如果 spring.xml
再在spring.xml文件中使用<import>标签导入 springmvc.xml文件
<import resource="classpath:springmvc.xml"/>
-->
<param-value>classpath:spring.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>MVC</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
</web-app>
springMVC.xml配置文件
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
">
<!-- 配置springmvc的注解驱动 -->
<mvc:annotation-driven/>
</beans>
编写表现层代码（controller）
@Controller
@RequestMapping("/user")
public class UserController {
@Autowired
private UserService service;
@RequestMapping("/list")
public String list(Model m) {
//调用service查询所有用户方法
List<User> users = service.selectList();
//共享数据
m.addAttribute("users", users);
return "/WEB-INF/view/user_list.jsp";
}
@RequestMapping("/delete")
public String delete(Integer id) {
System.out.println(id);
//调用service层的删除方法
service.delteByPrimaryKey(id);
return "redirect:/user/list.do";
}
}
user_list.jsp页面代码
在jsp页面 使用jstl标签库需要先在页面引入jstl 标签库
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!-- 引入jstl标签库 -->
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<h3>用户列表</h3>
<table border="1" style="width: 500px;" cellspacing="0">
<tr>
<th>id</th>
<th>名称</th>
<th>密码</th>
<th>年龄</th>
<th>操作</th>
</tr>
<c:forEach items="${users}" var="user">
<tr>
<td>${user.id}</td>
<td>${user.name}</td>
<td>${user.password}</td>
<td>${user.age}</td>
<td>
<a href="javascript:void(0);" onclick="deleteByPrimaryKey(${user.id})">删除</a>
<a href="">修改</a>
</td>
</tr>
</c:forEach>
</table>
<script type="text/javascript">
function deleteByPrimaryKey(userId){
if(confirm("亲，您确定删除此条数据么？")){
window.location.href= "${pageContext.request.contextPath}/user/delete.do?id="+userId;
}
}
</script>
</body>
</html>
原文地址：https://www.cnblogs.com/zhangxiong-tianxiadiyi/p/11172184.html
时间： 2024-08-02 20:21:47