上一篇介紹了怎麼SSM框架怎麼進行整合：點擊打開鏈接
這一篇主要創建一個項目（只寫登錄功能），測試一下我們的整合流程；
整合SSM：
1.創建測試數據庫：db_test_ssm(編碼utf8)
/*
Navicat MySQL Data Transfer
Source Server : 本地
Source Server Version : 50536
Source Host : localhost:3306
Source Database : db_test_ssm
Target Server Type : MYSQL
Target Server Version : 50536
File Encoding : 65001
Date: 2017-07-30 16:07:13
*/
SET FOREIGN_KEY_CHECKS=0;
-- ----------------------------
-- Table structure for `user`
-- ----------------------------
DROP TABLE IF EXISTS `user`;
CREATE TABLE `user` (
`uid` int(10) NOT NULL,
`uname` varchar(10) DEFAULT NULL,
`upassword` varchar(10) DEFAULT NULL,
PRIMARY KEY (`uid`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
-- ----------------------------
-- Records of user
-- ----------------------------
2.在eclipse中創建一個web項目
項目結構如下：
3.導入jar包
在項目的WEB-INF/lib下導入jar包，之後，並且右擊-->添加到構建路徑
我的jar包可以在這兒下載：點擊打開鏈接
4.創建配置文件（db.properties）
不知道是爲什麼，用db.properties配置的話，我的數據庫總是連接不上。所以，我還是在配置文件中
在config目錄下，創建db.properties
直接從我上一個博客中複製，並修改部分參數就可以了。
driver=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/db_test_ssm
username=root
password=1234
5.創建log4j的配置文件，log4j.properties
如果對日誌沒有什麼需求，這塊可以不配置。
在config目錄下，創建log4j.properties
直接從我上一個博客中複製，不需要任何修改
6.創建spring與mybatis整合的配置文件（spring-mybatis.xml）
在config目錄下，創建spring-mybatis.xml
直接從我上一個博客中複製，並修改部分參數就可以了。
<?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:util="http://www.springframework.org/schema/util"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:jpa="http://www.springframework.org/schema/data/jpa" xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.2.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">
<!-- 開啓自動掃描：就是將所有的對象交給spring管理 -->
<context:component-scan base-package="cn.com"></context:component-scan>
<!-- 配置dataSource -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
<property name="url" value="jdbc:mysql://localhost:3306/db_test_ssm"></property>
<property name="username" value="root"></property>
<property name="password" value="1234"></property>
</bean>
<!-- 配置SqlSessionFactory spring和MyBatis完美整合，不需要mybatis的配置映射文件 -->
<bean id="ssf" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<!-- 自動掃描mapping.xml文件 -->
<property name="mapperLocations" value="classpath:cn/com/sql/*.xml"></property>
</bean>
<!-- 配置MapperScannerConfigurer -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="cn.com.dao"></property>
<property name="sqlSessionFactoryBeanName" value="ssf"></property>
</bean>
<!-- (事務管理)transaction manager, use JtaTransactionManager for global tx -->
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
</beans>
<?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:util="http://www.springframework.org/schema/util"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:jpa="http://www.springframework.org/schema/data/jpa" xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.2.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">
<!-- 開啓自動掃描：就是將所有的對象交給spring管理 -->
<context:component-scan base-package="cn.com"></context:component-scan>
<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations" value="classpath:db.properties"/>
</bean>
<!-- 配置dataSource -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="${driver}"></property>
<property name="url" value="${url}"></property>
<property name="username" value="${username}"></property>
<property name="password" value="${password}"></property>
</bean>
<!-- 配置SqlSessionFactory spring和MyBatis完美整合，不需要mybatis的配置映射文件 -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
<property name="url" value="jdbc:mysql://localhost:3306/db_test_online"></property>
<property name="username" value="root"></property>
<property name="password" value="1234"></property>
</bean>
<!-- 配置MapperScannerConfigurer -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="cn.com.dao"></property>
<property name="sqlSessionFactoryBeanName" value="ssf"></property>
</bean>
<!-- (事務管理)transaction manager, use JtaTransactionManager for global tx -->
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
</beans>
7.整合springMVC（創建spring-mvc.xml）
在config目錄下，創建spring-mvc.xml
直接從我上一個博客中複製，並修改部分參數就可以了。
<?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:util="http://www.springframework.org/schema/util"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:jpa="http://www.springframework.org/schema/data/jpa" xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.2.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">
<!-- 自動掃描該包，使SpringMVC認爲包下用了@controller註解的類是控制器 -->
<context:component-scan base-package="cn.com.controller" />
<!-- 啓動SpringMVC的註解功能 -->
<mvc:annotation-driven></mvc:annotation-driven>
<!-- 如果需要其他的配置，可以在自行引入 -->
</beans>
8.配置web.xml
如果eclipse提示報錯，可以參考：點擊打開鏈接
如果不報錯，那就更好了
如果之前項目的配置都和我的一樣，那麼這裏的web.xml的配置直接複製，不需要進行任何修改，如果有不同之處，請自行更改。
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE xml>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance
http://www.springmodules.org/schema/cache/springmodules-cache.xsd
http://www.springmodules.org/schema/cache/springmodules-ehcache.xsd"
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_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>test_ssm</display-name>
<!-- Spring和mybatis的配置文件 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-mybatis.xml</param-value>
</context-param>
<!-- 編碼過濾器 -->
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<async-supported>true</async-supported>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- Spring監聽器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 防止Spring內存溢出監聽器 -->
<listener>
<listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
</listener>
<!-- Spring MVC servlet -->
<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>
<load-on-startup>1</load-on-startup>
<async-supported>true</async-supported>
</servlet>
<servlet-mapping>
<servlet-name>SpringMVC</servlet-name>
<!-- 此處可以可以配置成*.do，對應struts的後綴習慣 -->
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>/index.jsp</welcome-file>
</welcome-file-list>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
9.檢查是否有缺漏
框架整合完之後，完整的項目結構圖如下：
編寫項目代碼：
1.在數據庫中插入一條測試數據
2.編寫前臺登錄頁面（index.jsp）
我這裏主要使用，使用ajax發送請求
稍微解釋一下：輸入用戶名和密碼，點擊登錄，ajax就會向後臺發送請求。
<%@ 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">
<!-- 使用ajax，需要引入jquery -->
<script type="text/javascript" src="js/jquery-1.9.1.min.js"></script>
<title>測試ssm框架</title>
</head>
<!-- script代碼 -->
<script type="text/javascript">
$(function(){
var uname = $('#uname').val();
var upassword = $("#upassword").val();
$('#login').click(function(){
$.ajax({
url:'user/login.do',
data:{uanme:uname,upassword:upassword},
type:'post',
async:false,
success:function(data){
//如果登錄成功:彈出：登陸成功，否則：彈出失敗
alert(data);
}
});
});
});
</script>
<body>
<!-- 前臺頁面 -->
用戶名：<input type="text" id="uname" name="uname"></input><br>
密碼：<input type="password" id="upassword" name="upassword"></input><br>
<button id="login" >login</button>
</body>
</html>
3.編寫後臺代碼
各個類如下：
先說明一下：從上往下說：
0.user實體類
1.前臺發送請求，找到LoginController
2.LoginController調用LoginServiceImpl
3.LoginServiceImpl調用ILoginDao
4.ILoginDao實現類使用Spring的自動代理實現
5.ILoginDao中的方法，必須對應loginMapper.xml中的id
6.loginMapper.xml中，寫sql語句
7.測試
具體代碼在下面：
3.0.User實體類
package cn.com.domain;
public class User {
private int uid;
private String uname;
private String upassword;
public int getUid() {
return uid;
}
public void setUid(int uid) {
this.uid = uid;
}
public String getUname() {
return uname;
}
public void setUname(String uname) {
this.uname = uname;
}
public String getUpassword() {
return upassword;
}
public void setUpassword(String upassword) {
this.upassword = upassword;
}
}
3.1.LoginController 的代碼
當我們使用@Resource的註解的時候，無法使用，也沒有可以導入的包，怎麼辦？
那是因爲@Resource的註解不是spring 的，而是tomcat的，具體設置參考：點擊打開鏈接
package cn.com.controller;
import javax.annotation.Resource;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import cn.com.service.impl.LoginServiceImpl;
@Controller
@RequestMapping("/user")
public class LoginController {
@Resource
private LoginServiceImpl loginService;
@RequestMapping("/login.do")
@ResponseBody
public String execute(String uname,String upassword){
String result = loginService.login(uname,upassword);
//因爲前臺亂碼，所以我在這裏輸出一下
System.out.println(result);
return result;
}
}
3.2.ILoginService的代碼
package cn.com.service;
public interface ILoginService {
public String login(String uname,String upassword);
}
3.3.LoginServiceImpl的代碼
package cn.com.service.impl;
import javax.annotation.Resource;
import org.springframework.stereotype.Service;
import cn.com.dao.ILoginDao;
import cn.com.domain.User;
import cn.com.service.ILoginService;
@Service
public class LoginServiceImpl implements ILoginService{
@Resource
private ILoginDao loginDao;
public String login(String uname,String upassword) {
User user= loginDao.login(uname);
if(upassword.equals(user.getUpassword())){
return "登錄成功";
}
return "登錄失敗";
}
}
3.4.ILoginDao的代碼
package cn.com.dao;
import cn.com.domain.User;
public interface ILoginDao {
public User login(String uname);
}
3.5.loginMapper的代碼
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//ibatis.apache.org//DTD Mapper 3.0//EN"
"http://ibatis.apache.org/dtd/ibatis-3-mapper.dtd">
<mapper namespace="cn.com.dao.ILoginDao">
<select id="login" resultType="cn.com.domain.User">
SELECT * from `user` WHERE uname =#{uname}
</select>
</mapper>
3.結果圖
關於前臺亂碼，可以參考我的另一篇文章：點擊打開鏈接
本項目的源碼包：點擊打開鏈接
