SpringMVC + Spring + SpringJDBC整合

于 2014-08-06 08:23:57 发布
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分类专栏： spring
本文介绍了一个基于Spring3的整合实例，包括Spring MVC、Spring和Spring JDBC的整合过程。详细展示了web.xml、applicationContext.xml等配置文件的内容，以及UserController、UserService等核心组件的设计。

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SpringMVC +Spring+ SpringJDBC整合实例。文件结构：

SpringMVC + Spring + SpringJDBC整合

SpringMVC + Spring + SpringJDBC整合

 

3S3（3Spring3.x）的整合大致如下：

1）web.xml的配置：

 

01 <?xml version="1.0" encoding="UTF-8"?>
02 <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"version="3.0">
03   <display-name></display-name>
04   <welcome-file-list>
05     <welcome-file>index.jsp</welcome-file>
06   </welcome-file-list>
07   <listener>
08     <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
09   </listener>
10   <servlet>
11     <servlet-name>spring</servlet-name>
12     <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
13     <init-param>
14       <param-name>contextConfigLocation</param-name>
15       <param-value>classpath:*applicationContext.xml</param-value>
16     </init-param>
17     <load-on-startup>1</load-on-startup>
18   </servlet>
19   <servlet-mapping>
20     <servlet-name>spring</servlet-name>
21     <url-pattern>*.do</url-pattern>
22   </servlet-mapping>
23   <!-- 统一字符编码为UTF-8 -->
24   <filter>
25     <filter-name>setcharacter</filter-name>
26     <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
27     <init-param>
28       <param-name>encoding</param-name>
29       <param-value>utf-8</param-value>
30     </init-param>
31   </filter>
32   <filter-mapping>
33     <filter-name>setcharacter</filter-name>
34     <url-pattern>/*</url-pattern>
35   </filter-mapping>
36 </web-app>

 2）applicationContext.xml的配置：

001 <?xml version="1.0" encoding="UTF-8" ?>
002 <beans xmlns="http://www.springframework.org/schema/beans"
003     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:p="http://www.springframework.org/schema/p"
004     xmlns:context="http://www.springframework.org/schema/context"
005     xmlns:aop="http://www.springframework.org/schema/aop"xmlns:tx="http://www.springframework.org/schema/tx"
006     xsi:schemaLocation="http://www.springframework.org/schema/beans
007        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
008        http://www.springframework.org/schema/context
009        http://www.springframework.org/schema/context/spring-context-3.0.xsd
010        http://www.springframework.org/schema/tx
011        http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
012        http://www.springframework.org/schema/aop
013        http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
014  
015     <context:property-placeholder location="classpath:jdbc.properties" />
016  
017     <!-- 扫描类包，将标注Spring注解的类自动转化Bean，同时完成Bean的注入 -->
018     <context:component-scan base-package="com.controller" />
019     <context:component-scan base-package="com.service" />
020     <context:component-scan base-package="com.dao" />
021  
022     <!-- 配置数据源 -->
023     <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
024         destroy-method="close">
025         <property name="driverClass">
026             <value>${jdbc.driverClassName}</value>
027         </property>
028         <property name="jdbcUrl">
029             <value>${jdbc.url}</value>
030         </property>
031         <property name="user">
032             <value>${jdbc.username}</value>
033         </property>
034         <property name="password">
035             <value>${jdbc.password}</value>
036         </property>
037         <!--连接池中保留的最小连接数。 -->
038         <property name="minPoolSize">
039             <value>5</value>
040         </property>
041         <!--连接池中保留的最大连接数。Default: 15 -->
042         <property name="maxPoolSize">
043             <value>30</value>
044         </property>
045         <!--初始化时获取的连接数，取值应在minPoolSize与maxPoolSize之间。Default: 3 -->
046         <property name="initialPoolSize">
047             <value>10</value>
048         </property>
049         <!--最大空闲时间,60秒内未使用则连接被丢弃。若为0则永不丢弃。Default: 0 -->
050         <property name="maxIdleTime">
051             <value>60</value>
052         </property>
053         <!--当连接池中的连接耗尽的时候c3p0一次同时获取的连接数。Default: 3 -->
054         <property name="acquireIncrement">
055             <value>5</value>
056         </property>
057         <!--JDBC的标准参数，用以控制数据源内加载的PreparedStatements数量。但由于预缓存的statements 属于单个connection而不是整个连接池。所以设置这个参数需要考虑到多方面的因素。
058             如果maxStatements与maxStatementsPerConnection均为0，则缓存被关闭。Default: 0 -->
059         <property name="maxStatements">
060             <value>0</value>
061         </property>
062         <!--每60秒检查所有连接池中的空闲连接。Default: 0 -->
063         <property name="idleConnectionTestPeriod">
064             <value>60</value>
065         </property>
066         <!--定义在从数据库获取新连接失败后重复尝试的次数。Default: 30 -->
067         <property name="acquireRetryAttempts">
068             <value>30</value>
069         </property>
070         <!--获取连接失败将会引起所有等待连接池来获取连接的线程抛出异常。但是数据源仍有效 保留，并在下次调用getConnection()的时候继续尝试获取连接。如果设为true，那么在尝试
071             获取连接失败后该数据源将申明已断开并永久关闭。Default: false -->
072         <property name="breakAfterAcquireFailure">
073             <value>true</value>
074         </property>
075         <!--因性能消耗大请只在需要的时候使用它。如果设为true那么在每个connection提交的 时候都将校验其有效性。建议使用idleConnectionTestPeriod或automaticTestTable
076             等方法来提升连接测试的性能。Default: false -->
077         <property name="testConnectionOnCheckout">
078             <value>false</value>
079         </property>
080     </bean>
081  
082     <!-- 配置Jdbc模板 -->
083     <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
084         <property name="dataSource" ref="dataSource"></property>
085     </bean>
086  
087     <!-- 配置事务管理器 -->
088     <bean id="transactionManager"
089         class="org.springframework.jdbc.datasource.DataSourceTransactionManager"
090         p:dataSource-ref="dataSource" />
091  
092     <!-- 通过AOP配置提供事务增强，让service包下所有Bean的所有方法拥有事务 -->
093     <aop:config proxy-target-class="true">
094         <aop:pointcut id="serviceMethod"
095             expression=" execution(* com.service..*(..))" />
096         <aop:advisor pointcut-ref="serviceMethod" advice-ref="txAdvice" />
097     </aop:config>
098     <tx:advice id="txAdvice" transaction-manager="transactionManager">
099         <tx:attributes>
100             <tx:method name="*" />
101         </tx:attributes>
102     </tx:advice>
103  
104     <!-- 启动Spring MVC的注解功能，完成请求和注解POJO的映射 -->
105     <bean
106         class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"/>
107      
108      
109     <!-- 配置视图解析器，将ModelAndView及字符串解析为具体的页面 -->
110     <bean
111         class="org.springframework.web.servlet.view.InternalResourceViewResolver"
112         p:viewClass="org.springframework.web.servlet.view.JstlView"p:prefix="/WEB-INF/jsp/"
113         p:suffix=".jsp" />
114  
115 </beans>

3）jdbc.properties的配置:

1 jdbc.driverClassName=com.mysql.jdbc.Driver
2 jdbc.url=jdbc:mysql://localhost:3306/test2
3 jdbc.username=root
4 jdbc.password=123456

4)log4j.properties的配置:
1 log4j.rootLogger=DEBUG,A1
2 # \u8f93\u51fa\u5230\u63a7\u5236\u53f0
3 log4j.appender.A1=org.apache.log4j.ConsoleAppender
4 log4j.appender.A1.layout=org.apache.log4j.PatternLayout
5 log4j.appender.A1.layout.ConversionPattern=%d{yyyy-MM-dd HH\:mm\:ss} [\u65E5\u5FD7\u4FE1\u606F] %m%n

 5)User.java

01 package com.model;
02  
03 import java.io.Serializable;
04  
05 @SuppressWarnings("serial")
06 public class User implements Serializable {
07      
08     private int id;
09     private String userName;
10     private String password;
11      
12     public String getUserName() {
13         return userName;
14     }
15     public void setUserName(String userName) {
16         this.userName = userName;
17     }
18     public String getPassword() {
19         return password;
20     }
21     public void setPassword(String password) {
22         this.password = password;
23     }
24     public int getId() {
25         return id;
26     }
27     public void setId(int id) {
28         this.id = id;
29     }
30      
31  
32 }

6)UserController.java

01 package com.controller;
02  
03 import org.springframework.beans.factory.annotation.Autowired;
04 import org.springframework.stereotype.Controller;
05 import org.springframework.web.bind.annotation.RequestMapping;
06 import org.springframework.web.servlet.ModelAndView;
07  
08 import com.model.User;
09 import com.service.UserService;
10  
11 @Controller
12 public class UserComtroller {
13      
14     @Autowired
15     private UserService userService;
16      
17     @RequestMapping("/user/loginView")
18     public String loginView(){
19         return "login";
20     }
21      
22     @RequestMapping("/user/registerView")
23     public String registerView(){
24         return "register";
25     }
26      
27     @RequestMapping("/user/login")
28     public ModelAndView login(User user){
29         ModelAndView mav = new ModelAndView();
30         User u = userService.loginCheck(user);
31         if(null==u){
32             mav.setViewName("login");
33             mav.addObject("errorMsg","用户名或密码有误！");
34             return mav;
35         }
36         else{
37             mav.setViewName("success");
38             mav.addObject("user", u);
39             return mav;
40         }
41     }
42      
43     @RequestMapping("/user/register")
44     public ModelAndView register(User user){
45         ModelAndView mav = new ModelAndView();
46         if(userService.register(user)){
47             mav.setViewName("register_succ");
48             return mav;
49         }
50         else{
51             mav.setViewName("register");
52             mav.addObject("errorMsg","用户名已被占用，请更换！！");
53             return mav;
54         }
55     }
56 }

7)UserService Interface

1 package com.service;
2  
3 import com.model.User;
4  
5  
6 public interface UserService {
7     public boolean register(User user);
8     public User loginCheck(User user);
9 }

8)UserServiceImp.java

01 package com.service.implement;
02  
03 import org.springframework.beans.factory.annotation.Autowired;
04 import org.springframework.stereotype.Service;
05  
06 import com.dao.UserDao;
07 import com.model.User;
08 import com.service.UserService;
09  
10 @Service
11 public class UserServiceImpl implements UserService {
12  
13     @Autowired
14     private UserDao userDao;
15      
16     @Override
17     public User loginCheck(User user) {
18         User u  = userDao.findUserByUserName(user.getUserName());
19         System.out.println("id="+u.getId()+",  userName="+u.getUserName()+", password="+u.getPassword());
20         if(user.getPassword().equals(u.getPassword())){
21             return u;
22         }
23         else{
24             return null;
25         }
26     }
27  
28     @Override
29     public boolean register(User user) {
30         User u =  userDao.findUserByUserName(user.getUserName());
31         if(u.getId()==0){
32             userDao.register(user);
33             return true;
34         }
35         else{
36             System.out.println("id="+u.getId()+",  userName="+u.getUserName()+", password="+u.getPassword());
37             return false;
38         }
39     }
40  
41 }

9)UserDao Interface

1 package com.dao;
2  
3 import com.model.User;
4  
5 public interface UserDao {
6     public void register(User user);
7     public User findUserByUserName(final String userName);
8 }

10)UserDaoImpl.java

01 package com.dao.implement;
02  
03 import java.sql.ResultSet;
04 import java.sql.SQLException;
05  
06 import org.springframework.beans.factory.annotation.Autowired;
07 import org.springframework.jdbc.core.JdbcTemplate;
08 import org.springframework.jdbc.core.RowCallbackHandler;
09 import org.springframework.stereotype.Repository;
10  
11 import com.dao.UserDao;
12 import com.model.User;
13  
14 @Repository
15 public class UserDaoImpl implements UserDao {
16      
17     @Autowired
18     private JdbcTemplate jdbcTemplate;
19  
20     @Override
21     public void register(User user) {
22         String sqlStr = "insert into user(uname,pwd) values(?,?)";
23         Object[] params = new Object[]{user.getUserName(),user.getPassword()};
24         jdbcTemplate.update(sqlStr, params);
25     }
26  
27     @Override
28     public User findUserByUserName(String userName) {
29         String sqlStr = "select id,uname,pwd from user where uname=?";
30         final User user = new User();
31         jdbcTemplate.query(sqlStr, new Object[]{userName}, new RowCallbackHandler() {
32             @Override
33             public void processRow(ResultSet rs) throws SQLException {
34                 user.setId(rs.getInt("id"));
35                 user.setUserName(rs.getString("uname"));
36                 user.setPassword(rs.getString("pwd"));
37             }
38         });
39         return user;
40     }
41  
42 }

11）单元测试：test/com.service.implement

-UserServiceImplTest.java

01 package com.service.implement;
02  
03 import org.junit.Test;
04 import org.junit.runner.RunWith;
05 import org.springframework.beans.factory.annotation.Autowired;
06 import org.springframework.test.context.ContextConfiguration;
07 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
08  
09 import com.model.User;
10 import com.service.UserService;
11  
12  
13 @RunWith(SpringJUnit4ClassRunner.class)
14 @ContextConfiguration(locations="/applicationContext.xml")
15 public class UserServiceTest {
16      
17     @Autowired
18     private UserService userService;
19      
20     @Test
21     public void testLoginCheck(){
22         User user = new User();
23         user.setUserName("manager2");
24         user.setPassword("123");
25         if(null!=userService.loginCheck(user))
26             System.out.println("------OK!!-----");
27         else
28             System.out.println("------Sorry!!-----");
29     }
30      
31     @Test
32     public void testRegister(){
33         User user = new User();
34         user.setUserName("manager");
35         user.setPassword("123");
36         System.out.println(userService.register(user));
37     }
38  
39 }

12）测试结果：

SpringMVC + Spring + SpringJDBC整合

SpringMVC + Spring + SpringJDBC整合


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