1. 程式人生 > >springmvc+mybatis很經典的例子

springmvc+mybatis很經典的例子

springMVC+mybatis框架搭建

首先我們先要弄清搭建專案的一般流程,需要注意哪些方面,想要什麼樣的效果,自己的功能有哪些?

(假設效果:專案目錄結構清晰,能夠查詢到本地資料庫中的內容。。)

1.  工程目錄結構整理清楚

在src/main/java資料夾中,新建包cn.springmvc.model(存放javabean),

                                            cn.springmvc.dao(存放spring與mybatis連線介面),

                                            cn.springmvc.service(service介面),

                                            cn.springmvc.service.impl(service介面的實現),

                                            cn.springmvc.controller(存放控制層controller)

在src/main/resource資料夾中,新建包conf(存放配置檔案),

                                                   mapper(mybatis的mapper檔案)

在src/test/java資料夾中,新建包cn.springmvc.test(存放測試檔案)

在WEB-INF資料夾下新建jsp資料夾(存放jsp檔案)

這樣專案結構基本完成了

2.  引入依賴包

開啟maven的pom檔案,對本次開發所需使用的架包依次匯入(maven專案管理的優勢)

pom.xml(包依賴)

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<groupId>eyas.springmvc</groupId>
	<artifactId>springmvc</artifactId>
	<packaging>war</packaging>
	<version>0.0.1-SNAPSHOT</version>
	<name>springmvc Maven Webapp</name>
	<url>http://maven.apache.org</url>
	<properties>
		<!-- spring版本號 -->
		<spring.version>3.2.4.RELEASE</spring.version>
		<!-- mybatis版本號 -->
		<mybatis.version>3.2.4</mybatis.version>
		<!-- log4j日誌檔案管理包版本 -->
		<slf4j.version>1.6.6</slf4j.version>
		<log4j.version>1.2.9</log4j.version>
	</properties>
	<dependencies>
		<!-- spring核心包 -->
		<!-- springframe start -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-core</artifactId>
			<version>${spring.version}</version>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-web</artifactId>
			<version>${spring.version}</version>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-oxm</artifactId>
			<version>${spring.version}</version>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-tx</artifactId>
			<version>${spring.version}</version>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-jdbc</artifactId>
			<version>${spring.version}</version>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-webmvc</artifactId>
			<version>${spring.version}</version>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-aop</artifactId>
			<version>${spring.version}</version>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context-support</artifactId>
			<version>${spring.version}</version>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-aop</artifactId>
			<version>${spring.version}</version>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-test</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<!-- springframe end -->

		<!-- mybatis核心包 -->
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis</artifactId>
			<version>${mybatis.version}</version>
		</dependency>
		<!-- mybatis/spring包 -->
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis-spring</artifactId>
			<version>1.2.2</version>
		</dependency>
		<!-- mysql驅動包 -->
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<version>5.1.29</version>
		</dependency>
		<!-- junit測試包 -->
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>4.11</version>
			<scope>test</scope>
		</dependency>
		<!-- 阿里巴巴資料來源包 -->
		<dependency>
			<groupId>com.alibaba</groupId>
			<artifactId>druid</artifactId>
			<version>1.0.2</version>
		</dependency>

		<!-- json資料 -->
		<dependency>
			<groupId>org.codehaus.jackson</groupId>
			<artifactId>jackson-mapper-asl</artifactId>
			<version>1.9.13</version>
		</dependency>

		<!-- 日誌檔案管理包 -->
		<!-- log start -->
		<dependency>
			<groupId>log4j</groupId>
			<artifactId>log4j</artifactId>
			<version>${log4j.version}</version>
		</dependency>
		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-api</artifactId>
			<version>${slf4j.version}</version>
		</dependency>
		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-log4j12</artifactId>
			<version>${slf4j.version}</version>
		</dependency>
		<!-- log end -->
	</dependencies>
	<build>
		<finalName>springmvc</finalName>
	</build>
</project>

3. 配置資料庫連線屬性

conf/ jdbc.properties(jdbc配置檔案)

jdbc_driverClassName=com.mysql.jdbc.Driver
jdbc_url=jdbc:mysql://localhost:3306/mydays?useUnicode=true&amp;characterEncoding=utf-8
jdbc_username=root
jdbc_password=root

4.  配置spring配置檔案

    conf/spring.xml(spring配置檔案的掃描)

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
 xmlns:context="http://www.springframework.org/schema/context"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
      http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context.xsd">

    <!-- 引入jdbc配置檔案 -->
    <context:property-placeholder location="classpath:conf/jdbc.properties"/>
    
    <!-- 掃描檔案(自動將servicec層注入) -->
    <context:component-scan base-package="cn.springmvc.service"/>
</beans>
  conf/spring-mybatis.xml(spring與mybatis連線屬性)
<?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:p="http://www.springframework.org/schema/p"
  xmlns:context="http://www.springframework.org/schema/context"
  xmlns:aop="http://www.springframework.org/schema/aop"
  xmlns:tx="http://www.springframework.org/schema/tx"
  xmlns:util="http://www.springframework.org/schema/util"
  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/tx
    http://www.springframework.org/schema/tx/spring-tx-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/util 
    http://www.springframework.org/schema/util/spring-util-3.2.xsd">

    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init"
    destroy-method="close" >
    <property name="driverClassName">
      <value>${jdbc_driverClassName}</value>
    </property>
    <property name="url">
      <value>${jdbc_url}</value>
    </property>
    <property name="username">
      <value>${jdbc_username}</value>
    </property>
    <property name="password">
      <value>${jdbc_password}</value>
    </property>
    <!-- 連線池最大使用連線數 -->
    <property name="maxActive">
      <value>20</value>
    </property>
    <!-- 初始化連線大小 -->
    <property name="initialSize">
      <value>1</value>
    </property>
    <!-- 獲取連線最大等待時間 -->
    <property name="maxWait">
      <value>60000</value>
    </property>
    <!-- 連線池最大空閒 -->
    <property name="maxIdle">
      <value>20</value>
    </property>
    <!-- 連線池最小空閒 -->
    <property name="minIdle">
      <value>3</value>
    </property>
    <!-- 自動清除無用連線 -->
    <property name="removeAbandoned">
      <value>true</value>
    </property>
    <!-- 清除無用連線的等待時間 -->
    <property name="removeAbandonedTimeout">
      <value>180</value>
    </property>
    <!-- 連線屬性 -->
    <property name="connectionProperties">
      <value>clientEncoding=UTF-8</value>
    </property>
  </bean>
    
    <!-- mybatis檔案配置,掃描所有mapper檔案 -->
      <bean id="sqlSessionFactory"
          class="org.mybatis.spring.SqlSessionFactoryBean"
          p:dataSource-ref="dataSource"
          p:configLocation="classpath:conf/mybatis-config.xml"
          p:mapperLocations="classpath:mapper/*.xml"/><!-- configLocation為mybatis屬性 mapperLocations為所有mapper-->
      
   <!-- spring與mybatis整合配置,掃描所有dao -->
 <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"
        p:basePackage="cn.springmvc.dao" 
        p:sqlSessionFactoryBeanName="sqlSessionFactory"/>
 
   <!-- 對資料來源進行事務管理 -->
  <bean id="transactionManager" 
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager"
        p:dataSource-ref="dataSource"/>
</beans>

5.  java程式碼編寫(model,dao,service層程式碼)

   cn.springmvc.model/User.java(使用者基本資訊)

package cn.springmvc.model;


/**
 * 使用者表
 */
public class User {

	private int id;
	private int state;
	private String nickname;
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	public int getState() {
		return state;
	}
	public void setState(int state) {
		this.state = state;
	}
	public String getNickname() {
		return nickname;
	}
	public void setNickname(String nickname) {
		this.nickname = nickname;
	}
}
cn.springmvc.dao/UserDAO.java(dao操作介面)
package cn.springmvc.dao;

import cn.springmvc.model.User;


public interface UserDAO {

	/**
	 * 新增新使用者
	 * @param user
	 * @return
	 */
	public int insertUser(User user);
	
	
}

cn.springmvc.service/UserService.java(service層介面)

package cn.springmvc.service;

import cn.springmvc.model.User;


public interface UserService {

	public int insertUser(User user);
}
cn.springmvc.service.impl/UserServiceImpl.java(service層介面實現)
package cn.springmvc.service.impl;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import cn.springmvc.dao.UserDAO;
import cn.springmvc.model.User;
import cn.springmvc.service.UserService;


@Service
public class UserServiceImpl implements UserService{

	@Autowired
	private UserDAO userDAO;
	
	@Override
	public int insertUser(User user) {
		// TODO Auto-generated method stub
		return userDAO.insertUser(user);
	}

}

6.  mybatis配置

   conf/mybatis-config.xml(mybatis配置的基本檔案)

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration 
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
        <!-- 名稱空間 -->
    <typeAliases>
         <typeAlias alias="User" type="cn.springmvc.model.User"/> 
    </typeAliases>

    <!-- 對映map -->
    <mappers>
    </mappers>
</configuration>
mapper/UserMapper.xml(mybatis的實現)
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
 PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="cn.springmvc.dao.UserDAO">
           
         <insert id="insertUser" parameterType="User" keyProperty="id">
             insert into days_user(  
         state,
         nickname) 
         values 
         (        
         #{state},
         #{nickname})
         </insert>
         
</mapper>
這樣就完成了基本插入使用者的功能!

7.  junit測試插入功能

cn.springmvc.test/UserTest.java(使用者測試模組)

package cn.springmvc.test;

import org.junit.Before;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import cn.springmvc.model.User;
import cn.springmvc.service.UserService;



public class UserTest {

private UserService userService;
	
	@Before
	public void before(){                                                                    
		@SuppressWarnings("resource")
		ApplicationContext context = new ClassPathXmlApplicationContext(new String[]{"classpath:conf/spring.xml"
				,"classpath:conf/spring-mybatis.xml"});
		userService = (UserService) context.getBean("userServiceImpl");
	}
	
	@Test
	public void addUser(){
		User user = new User();
		user.setNickname("你好");
		user.setState(2);
		System.out.println(userService.insertUser(user));
	}
}
測試結果如圖:

maven+springMVC+mybatis+junit詳細搭建過程

即完成插入功能!

8.  springMVC模組搭建 

    web.xml(web功能配置)

<?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_2_5.xsd"
	id="WebApp_ID" version="2.5">
	<display-name>Archetype Created Web Application</display-name>

	<!-- 讀取spring配置檔案 -->
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath:conf/spring.xml;
			classpath:conf/spring-mybatis.xml
		</param-value>
	</context-param>
	<!-- 設計路徑變數值 -->
	<context-param>
		<param-name>webAppRootKey</param-name>
		<param-value>springmvc.root</param-value>
	</context-param>


	<!-- Spring字符集過濾器 -->
	<filter>
		<filter-name>SpringEncodingFilter</filter-name>
		<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
		<init-param>
			<param-name>encoding</param-name>
			<param-value>UTF-8</param-value>
		</init-param>
		<init-param>
			<param-name>forceEncoding</param-name>
			<param-value>true</param-value>
		</init-param>
	</filter>
	<filter-mapping>
		<filter-name>SpringEncodingFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>

	<!-- 日誌記錄 -->
	<context-param>
		<!-- 日誌配置檔案路徑 -->
		<param-name>log4jConfigLocation</param-name>
		<param-value>classpath:conf/log4j.properties</param-value>
	</context-param>
	<context-param>
		<!-- 日誌頁面的重新整理間隔 -->
		<param-name>log4jRefreshInterval</param-name>
		<param-value>6000</param-value>
	</context-param>
	<listener>
		<listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
	</listener>

	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>

	<!-- springMVC核心配置 -->
	<servlet>
		<servlet-name>spring</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>classpath:conf/spring-mvc.xml</param-value>
		</init-param>
		<load-on-startup>2</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>spring</servlet-name>
		<url-pattern>*.do</url-pattern>
	</servlet-mapping>

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

	<!-- 錯誤跳轉頁面 -->
	<error-page>
		<!-- 路徑不正確 -->
		<error-code>404</error-code>
		<location>/WEB-INF/errorpage/404.jsp</location>
	</error-page>
	<error-page>
		<!-- 沒有訪問許可權,訪問被禁止 -->
		<error-code>405</error-code>
		<location>/WEB-INF/errorpage/405.jsp</location>
	</error-page>
	<error-page>
		<!-- 內部錯誤 -->
		<error-code>500</error-code>
		<location>/WEB-INF/errorpage/500.jsp</location>
	</error-page>
</web-app>
conf/spring-mvc.xml(mvc配置檔案)
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
  xmlns:p="http://www.springframework.org/schema/p"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns:context="http://www.springframework.org/schema/context"
  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/mvc
    http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">
    
    <!-- 掃描controller(controller層注入) -->
   <context:component-scan base-package="cn.springmvc.controller"/>
   
   <!-- 避免IE在ajax請求時,返回json出現下載 -->
   <bean id="jacksonMessageConverter" class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">		
		<property name="supportedMediaTypes">
			<list>
				<value>text/html;charset=UTF-8</value>
			</list>
		</property>
	</bean>
	
   <!-- 對模型檢視新增前後綴 -->
     <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver" 
      p:prefix="/WEB-INF/jsp/" p:suffix=".jsp"/>
</beans>

9.  log4j日誌記錄搭建

    conf/log4j.properties(日誌記錄的配置檔案)

 ### set log levels ###
#log4j.rootLogger = debug , stdout , D , E
log4j.rootLogger = debug , stdout , D

###  output to the console ###
log4j.appender.stdout = org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target = System.out
log4j.appender.stdout.layout = org.apache.log4j.PatternLayout
#log4j.appender.stdout.layout.ConversionPattern = %d{ABSOLUTE} %5p %c{ 1 }:%L - %m%n
log4j.appender.stdout.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [%c]-[%p] %m%n

### Output to the log file ###
log4j.appender.D = org.apache.log4j.DailyRollingFileAppender
log4j.appender.D.File = ${springmvc.root}/WEB-INF/logs/log.log
log4j.appender.D.Append = true
log4j.appender.D.Threshold = DEBUG 
log4j.appender.D.layout = org.apache.log4j.PatternLayout
log4j.appender.D.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n

### Save exception information to separate file ###
log4j.appender.D = org.apache.log4j.DailyRollingFileAppender
log4j.appender.D.File = ${springmvc.root}/WEB-INF/logs/error.log 
log4j.appender.D.Append = true
log4j.appender.D.Threshold = ERROR 
log4j.appender.D.layout = org.apache.log4j.PatternLayout
log4j.appender.D.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n

10.  測試執行

WEB-INF/jsp/index.jsp(測試檔案)

<%@ 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>Insert title here</title>
</head>
<body>
<h1>歡迎你!!!</h1>
</body>
</html>
cn.springmvc.controller/UserComtroller.java(controller層控制)
package cn.springmvc.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

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

	@RequestMapping("index")
	public String index(){
		return "index";
	}
	
}

將該專案部署到本地tomcat6中

右擊該專案選擇Run as,選擇Run on Server

選擇自己建立的tomcat6執行如圖:

maven+springMVC+mybatis+junit詳細搭建過程

控制檯打印出日誌如圖(啟動成功):

maven+springMVC+mybatis+junit詳細搭建過程

在瀏覽器中輸入:http://localhost:8080/springmvc/index.do 進行測試

效果如圖(返回成功):

maven+springMVC+mybatis+junit詳細搭建過程

整體包下載地址:

http://download.csdn.net/detail/fengerfhf/6916831

來自:http://my.oschina.net/u/1011897/blog/199172