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  • 搭建Spring框架,实现添加数据到数据库

    原创链接:http://www.cnblogs.com/yanqin/p/5284400.html (允许转载,但请注明原创链接) 

    1.在myeclipse中建立一个web项目

    项目名 :spring01

    我建立的项目配置是 j2ee6、java版本1.7,让他自动生成web.xml。

    我的mysql数据库里已经有 一个名叫spring的库了和tz_user表。

    2.引入jar包

    spring jar包如下:

    spring-aop-4.1.5.RELEASE.jar
    spring-beans-4.1.5.RELEASE.jar
    spring-context-4.1.5.RELEASE.jar
    spring-context-support-4.1.5.RELEASE.jar
    spring-core-4.1.5.RELEASE.jar
    spring-expression-4.1.5.RELEASE.jar
    spring-jdbc-4.1.5.RELEASE.jar
    spring-test-4.1.5.RELEASE.jar
    spring-tx-4.1.5.RELEASE.jar
    spring-web-4.1.5.RELEASE.jar
    spring-webmvc-4.1.5.RELEASE.jar
    

    其他 jar:

    commons-collections-3.1.jar
    commons-dbcp-1.2.1.jar
    commons-lang3-3.1.jar
    commons-logging-1.1.3.jar
    commons-pool-1.2.jar
    mysql-connector-java-5.1.6-bin.jar
    

    引入log4j配置文件

    3.配置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"
    	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">
    	<display-name>spring01</display-name>
    
    	<context-param>
    		<param-name>contextConfigLocation</param-name>
    		<param-value>classpath:applicationContext.xml</param-value>
    	</context-param>
    
    	<listener>
    		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    	</listener>
    
    
    	<welcome-file-list>
    		<welcome-file>index.html</welcome-file>
    		<welcome-file>index.htm</welcome-file>
    		<welcome-file>index.jsp</welcome-file>
    	</welcome-file-list>
    </web-app>
    

    4.创建applicationContext.xml文件

    <?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:p="http://www.springframework.org/schema/p"
    	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-4.0.xsd
     ">
    	<!-- 配置spring去扫描包下的文件 -->
    	<context:component-scan base-package="com.yq.dao"></context:component-scan>
    	<context:component-scan base-package="com.yq.service"></context:component-scan>
    
    	<!-- 配置数据源 -->
    	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
    		<property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
    		<property name="url" value="jdbc:mysql://localhost:3306/spring?useUnicode=true&amp;characterEncoding=utf-8"></property>
    		<property name="username" value="root"></property>
    		<property name="password" value="root"></property>
    	</bean>
    	
    	<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
    		<property name="dataSource" ref="dataSource"></property>
    	</bean>
    </beans>
    

    5.创建model dao层

    package com.yq.model;
    
    
    /**
     * 
     * 
     * User 
     * 创建人:yq 
     * 时间:2016年3月16日-下午4:18:13
     * @version 1.0.0
     *
     */
    public class User implements java.io.Serializable {
    
    	private static final long serialVersionUID = 1L;
    
    	// id
    	private Integer id;
    	// 用户名
    	private String username;
    	// 密码
    	private String password;
    	// 年龄
    	private Integer age;
    	// 地址
    	private String address;
    	// 邮箱
    	private String email;
    
    	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;
    	}
    
    	public Integer getAge() {
    		return age;
    	}
    
    	public void setAge(Integer age) {
    		this.age = age;
    	}
    
    	public String getAddress() {
    		return address;
    	}
    
    	public void setAddress(String address) {
    		this.address = address;
    	}
    
    	public String getEmail() {
    		return email;
    	}
    
    	public void setEmail(String email) {
    		this.email = email;
    	}
    
    }
    
    package com.yq.dao;
    
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.jdbc.core.JdbcTemplate;
    import org.springframework.stereotype.Repository;
    
    import com.yq.model.User;
    
    /**
     * 
     * 
     * UserDao 
     * 创建人:yq 
     * @version 1.0.0
     *
     */
    @Repository
    public class UserDao {
    
    	@Autowired
    	private JdbcTemplate jdbcTemplate;
    
    	/**
    	 * 
    	 * 保存
    	 * com.yq.dao 
    	 * 方法名:saveUser
    	 * 创建人:yq
    	 * @param user
    	 * @return boolean
    	 * @exception 
    	 * @since  1.0.0
    	 */
    	public boolean saveUser(User user) {
    		String sql = "insert into tz_user(username,password,age,address,email) VALUES(?,?,?,?,?)";
    		int count = jdbcTemplate.update(sql, user.getUsername(),
    				user.getPassword(), user.getAge(), user.getAddress(),
    				user.getEmail());
    		return count>0?true:false;
    	}
    }
    

    6.在web.xml配置下

    在listener下面添加

    	<servlet>
    		<servlet-name>spring</servlet-name>
    		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    		<init-param>
    			<param-name>namespace</param-name>
    			<param-value>spring</param-value>
    		</init-param>
    		<load-on-startup>2</load-on-startup>
    	</servlet>
    	<servlet-mapping>
    		<servlet-name>spring</servlet-name>
    		<url-pattern>*.html</url-pattern>
    	</servlet-mapping>
    

    7.web-inf下创建spring.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:p="http://www.springframework.org/schema/p"
    	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-4.0.xsd
     ">
    
    	<context:component-scan base-package="com.yq.web"></context:component-scan>
    	
    	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    		<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"></property>
    		<property name="prefix" value="/WEB-INF/pages/"></property>
    		<property name="suffix" value=".jsp"></property>
    	</bean>
    	
    </beans>
    

      

    8.web-inf下创建pages文件夹和jsp页面

    addUser.jsp

    <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
    <!DOCTYPE HTML>
    <html>
    <head>
    
    </head>
    
    <body>
    <form action="user/save.html" method="post">
    	<div>用户名<input name="username"></div>
    	<div>密码<input name="password"></div>
    	<div>年龄<input name="age"></div>
    	<div>地址<input name="address"></div>
    	<div>邮箱<input name="email"></div>
    	<div><input type="submit" vlaue="添加"></div>
    </form>
    </body>
    </html>
    

      

    success.jsp

    <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
    <!DOCTYPE HTML>
    <html>
    <head>
    </head>
    <body>
    success
    </body>
    </html>
    

    fail.jsp

    <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
    <!DOCTYPE HTML>
    <html>
    <head>
    </head>
    <body>
    fail
    </body>
    </html>
    

    9.web包下创建controller

    package com.yq.web;
    
    import javax.servlet.http.HttpServlet;
    import javax.servlet.http.HttpServletRequest;
    
    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.yq.model.User;
    import com.yq.service.UserService;
    
    /**
     * 
     * 
     * UserController
     * 创建人:yq
     * @version 1.0.0
     *
     */
    @Controller
    public class UserController extends HttpServlet {
    
    	@Autowired
    	private UserService userService;
    	
    	@RequestMapping("/user")
    	public ModelAndView user(){
    		ModelAndView mav = new ModelAndView();
    		mav.setViewName("user");
    		return mav;
    	}
    	
    	@RequestMapping("/user/save")
    	public ModelAndView userSave(HttpServletRequest req){
    		ModelAndView mav = new ModelAndView();
    		/*
    		 * 获取前台传来的数据并封装到对象中
    		 */
    		User user = new User();
    		user.setUsername(req.getParameter("username"));
    		user.setPassword(req.getParameter("password"));
    		user.setAge(Integer.parseInt(req.getParameter("age")));
    		user.setAddress(req.getParameter("address"));
    		user.setEmail(req.getParameter("email"));
    		
    		/*
    		 * 调用service
    		 */
    		boolean flag = userService.saveUser(user);
    		if(flag){
    			mav.setViewName("success");
    		}else{
    			mav.setViewName("fail");
    		}
    		return mav;
    	}
    }
    

    10.测试

    打开  localhost/spring/adduser.html ,并填入信息  (我的tomcat将端口设置成了80了,所以我的链接不需要加端口号)

    点击提交后,跳转success页面,显示success

    然后查看数据库,显示数据已经添加进去了。

    现在一个简单的spring框架已经搭建完成,并且而且向数据库添加数据了。

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  • 原文地址:https://www.cnblogs.com/yanqin/p/5284400.html
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