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搭建最简单的springmvc架构demo

2017-09-08 18:26 369 查看

搭建最简单的springmvc架构demo
1 下载支撑spring架构的基础jar包，jar包列表如图1所示：

图1 jar包列表
2.创建一个java web 项目，按照如下代码所示方式配置web.xml文件

<?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_3_0.xsd" id="WebApp_ID" version="3.0">

<!--定义web应用名称，http://IP:port/display-name/-->
<display-name>springmvctest</display-name>

<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-mvc.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>

<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>

</web-app>

3.创建spring-mvc.xml配置文件，具体配置如下代码所示：

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.2.xsd ">

<!-- 配置视图解析器 -->
<bean class = "org.springframework.web.servlet.view.InternalResourceViewResolver">
<!--路径前缀-->
<property name="prefix" value="/"/>
<!--路径后缀-->
<property name="suffix" value=".jsp"/>
<!--真实路径 = 前缀 + 视图名 +后缀-->
</bean>

<!--开启Spring MVC注解-->
<mvc:annotation-driven />

<!--配置注解扫描-->
<context:component-scan base-package="com.sophia"/>

</beans>

4.创建controller控制类，如下代码所示：

package com.sophia.test.controller;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import com.sophia.test.pojo.User;
/**
* Created by Sophia on 2017/9/8.
*/

@Controller
@RequestMapping("user")
public class UserController {

@RequestMapping("")
public String Create(Model model) {
return "test/addUser";
}

@RequestMapping("/add")
public String Save(@ModelAttribute("form") User user, Model model) {
model.addAttribute("user", user);
return "test/show";
}
}

5.创建user对象实体类，如下代码所示：

package com.sophia.test.pojo;

/**
* Created by Sophia on 2017/9/8.
*/
import java.io.Serializable;
import java.util.Date;

public class User implements Serializable {

private static final long serialVersionUID = 1L;
private Integer id;
private String userName;
private String password;

public Integer getId() {
return id;
}

public void setId(Integer id) {
this.id = id;
}

public String getUserName() {
return userName;
}

public void setUserName(String userName) {
this.userName = userName;
}

public String getPassword() {
return password;
}

public void setPassword(String password) {
this.password = password;
}
}

6.创建新增用户的jsp页面，如下代码所示：

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!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>add user</title>
</head>
<body>
<form style="text-align: center" action="../user/add.do" method="post">
<fieldset style="width: 250px;">
<legend>添加用户</legend>
<p>
<label>用户名：</label> <input type="text" id="userName" name="userName">
</p>
<p>
<label>密   码：</label> <input type="password" id="password" name="password">
</p>
<p align="center">
<input id="reset" type="reset" value="重置">   <input id="submit" type="submit" value="提交">
</p>
</fieldset>
</form>
</body>
</html>

运行的效果图如图2所示：

图2 新增用户信息
7.创建显示用户信息的jsp页面，如下代码所示：

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!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>show user info</title>
</head>
<body>
<div style="text-align: center">
<fieldset style="width: 250px;">
<legend>用户信息</legend>
<p>
<label>用户名： ${user.userName}</label>
</p>
<p>
<label>密码： ${user.password}</label>
</p>
</fieldset>
</div>
</body>
</html>

运行的效果图如图3所示：

图3 用户信息显示

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标签： spring mvc

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