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&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。
