SSM整合 Spring MVC5.0.8+Spring 5.0.8+Mybatis 3.4.6
阿新 • • 發佈：2018-12-17
第一步：使用Maven搭建專案，並在pom.xml中匯入SSM需要使用到的依賴包
<!--單元測試依賴--> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> <scope>test</scope> </dependency> <!--Servlet依賴--> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>4.0.0</version> <scope>provided</scope> </dependency> <!--jstl依賴--> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <!--mysql資料庫驅動依賴--> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.38</version> </dependency> <!--c3p0依賴--> <dependency> <groupId>com.mchange</groupId> <artifactId>c3p0</artifactId> <version>0.9.5.2</version> </dependency> <!--spring-webmvc依賴--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>5.0.8.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>5.0.8.RELEASE</version> </dependency> <!--mybatis依賴--> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.4.6</version> </dependency> <!--mybatis-spring依賴--> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.3.2</version> </dependency> <!-- jedis （一個redis client端的jar）--> <dependency> <groupId>redis.clients</groupId> <artifactId>jedis</artifactId> <version>2.9.0</version> </dependency> <!--fastjson依賴--> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.7</version> </dependency> <build> <finalName>ssm_02</finalName> <!--如果是使用idea，請加上這段程式碼是訪問包的靜態檔案--> <resources> <resource> <directory>src/main/java</directory> <includes> <include>**/*.xml</include> </includes> </resource> </resources> <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) --> <plugins> <plugin> <artifactId>maven-clean-plugin</artifactId> <version>3.0.0</version> </plugin> <!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging --> <plugin> <artifactId>maven-resources-plugin</artifactId> <version>3.0.2</version> </plugin> <plugin> <artifactId>maven-compiler-plugin</artifactId> <version>3.7.0</version> </plugin> <plugin> <artifactId>maven-surefire-plugin</artifactId> <version>2.20.1</version> </plugin> <plugin> <artifactId>maven-war-plugin</artifactId> <version>3.2.0</version> </plugin> <plugin> <artifactId>maven-install-plugin</artifactId> <version>2.5.2</version> </plugin> <plugin> <artifactId>maven-deploy-plugin</artifactId> <version>2.8.2</version> </plugin> </plugins> </pluginManagement> </build>
第二步：在專案中建立包
根據自己建包習慣而定
第三步：在resources中建立db.properties(資料庫配置檔案，名字可以自定義)
#定義資料庫驅動 drivers=com.mysql.jdbc.Driver url=jdbc:mysql://127.0.0.1:3306/db_a?useUnicode=true&characterEncoding=UTF-8 user=root userpassword=root #定義初始連線數 initPoolSize=3 #定義最大連線數 maxPoolSizes=30 #定義最小空閒 minIdle=1 #定義最長等待時間 maxWait=60000
第四步：在resources中建立spring.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:mvc="http://www.springframework.org/schema/mvc" 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.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"> <!--自動掃描：自動掃描com.heyang.ssm包下所有類的註解--> <context:component-scan base-package="com.heyang.ssm"/> <!--載入db.properties--> <context:property-placeholder location="classpath:db.properties"></context:property-placeholder> <!--配置資料來源 從c3p0--> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <property name="driverClass" value="${drivers}"></property> <property name="jdbcUrl" value="${url}"></property> <property name="user" value="${user}"></property> <property name="initialPoolSize" value="${initPoolSize}"></property> <property name="maxPoolSize" value="${maxPoolSizes}"></property> </bean> <!--配置SqlSessionFactory--> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <!--載入資料來源--> <property name="dataSource" ref="dataSource"></property> <!--載入MyBatis配置檔案--> <property name="configLocation" value="classpath:mybatis-Config.xml"></property> <!--載入所有對映檔案--> <property name="mapperLocations" value="classpath:com/heyang/ssm/mapper/*.xml"></property> <!--typeAliasesPackage對應實體類所在的包，這個時候會自動取包名作為別名--> <property name="typeAliasesPackage" value="com.heyang.ssm.pojo"></property> </bean> <!--配置Dao層：spring注入這個bean--> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <!--將sqlSessionFactory注入com.zking.dao包的類中，dao包中的類直接使用sqlSessionFactory--> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property> <property name="basePackage" value="com.heyang.ssm.dao"></property> </bean> <!-- 事務管理 --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"></property> </bean>
第五步：在pojo包中建立實體類
package com.heyang.ssm.pojo;
import java.io.Serializable;
public class User implements Serializable {
private Integer userId;
private String userName;
private String userPassword;
public User(Integer userId, String userName, String userPassword) {
this.userId = userId;
this.userName = userName;
this.userPassword = userPassword;
}
public User(String userName, String userPassword) {
this.userName = userName;
this.userPassword = userPassword;
}
public User() {
}
public Integer getUserId() {
return userId;
}
public void setUserId(Integer userId) {
this.userId = userId;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getUserPassword() {
return userPassword;
}
public void setUserPassword(String userPassword) {
this.userPassword = userPassword;
}
@Override
public String toString() {
return "User{" +
"userId=" + userId +
", userName='" + userName + '\'' +
", userPassword='" + userPassword + '\'' +
'}';
}
}
第六步：在dao包中建立介面，編寫方法
package com.heyang.ssm.dao;
import com.heyang.ssm.pojo.User;
import java.util.List;
public interface UserDao {
/**
* 增加
* @param user
* @return
*/
public int addUser(User user);
/**
* 刪除
* @param user
* @return
*/
public int deleteUser(Integer user);
/**
* 修改
* @param user
* @return
*/
public int updateUser(User user);
/**
* 根據ID查詢
* @param userId
* @return
*/
public User getUserById(Integer userId);
/**
* 得到所有的使用者
* @return
*/
public List<User> getAllUser();
/**
* 綜合查詢
* @param user
* @return
*/
public List<User> getUser(User user);
}
第七步：在mappier包中建立實體類的Mapper檔案：UserMapper.xml
<?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="com.heyang.ssm.dao.UserDao">
<insert id="addUser" parameterType="User">
INSERT INTO T_USER VALUES(NULL,#{userName},#{userPassword})
</insert>
<delete id="deleteUser" parameterType="integer">
DELETE FROM T_USER WHERE USER_ID = #{userId}
</delete>
<select id="getAllUser" resultType="User">
SELECT USER_ID,USER_NAME FROM T_USER
</select>
<select id="getUserById" parameterType="integer" resultType="User" >
SELECT USER_ID,USER_NAME FROM T_USER WHERE USER_ID=#{userId}
</select>
<update id="updateUser" parameterType="User">
<if test="userPassword!=''">
UPDATE T_USER SET USER_NAME=#{userName},USER_PASSWORD=#{userPassword} WHERE USER_ID=#{userId}
</if>
<if test="userPassword==''">
UPDATE T_USER SET USER_NAME=#{userName} WHERE USER_ID=#{userId}
</if>
</update>
<select id="getUser" parameterType="User" resultType="User">
SELECT USER_ID,USER_NAME FROM T_USER WHERE 1=1
<if test="userId!='' and userName==''">
AND USER_ID=#{userId}
</if>
<if test="userName!='' and userId=='' ">
AND USER_NAME LIKE "%"#{userName}"%"
</if>
<if test="userId!='' and userName!='' ">
AND USER_ID=#{userId} AND USER_NAME LIKE "%"#{userName}"%"
</if>
</select>
<!--<resultMap id="userMapper" type="com.heyang.ssm.pojo.User">-->
<!--<id property="userId" column="USER_ID" />-->
<!--<result property="userName" column="USER_NAME" />-->
<!--</resultMap>-->
</mapper>第八步：在service中建立介面，在impl包中建立介面的實現類
package com.heyang.ssm.service;
import com.heyang.ssm.pojo.User;
import java.util.List;
public interface UserService {
/**
* 增加
* @param user
* @return
*/
public int addUser(User user);
/**
* 得到所有的使用者
* @return
*/
public List<User> getAllUser();
/**
* 根據ID查詢
* @param userId
* @return
*/
public User getUserById(Integer userId);
/**
* 修改
* @param user
* @return
*/
public int updateUser(User user);
/**
* 刪除
* @param user
* @return
*/
public int deleteUser(Integer user);
/**
* 綜合查詢
* @param user
* @return
*/
public List<User> getUser(User user);
}
service實現類
package com.heyang.ssm.service.impl;
import com.heyang.ssm.dao.UserDao;
import com.heyang.ssm.pojo.User;
import com.heyang.ssm.service.UserService;
import org.springframework.stereotype.Service;
import javax.annotation.Resource;
import java.util.List;
@Service("userService")
public class UserServiceImpl implements UserService {
@Resource
private UserDao userDao;
@Override
public int addUser(User user) {
return userDao.addUser(user);
}
@Override
public List<User> getAllUser() {
return userDao.getAllUser();
}
@Override
public User getUserById(Integer userId) {
return userDao.getUserById(userId);
}
@Override
public int updateUser(User user) {
return userDao.updateUser(user);
}
@Override
public int deleteUser(Integer user) {
return userDao.deleteUser(user);
}
@Override
public List<User> getUser(User user) {
return userDao.getUser(user);
}
}
第九步：配置web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
id="WebApp_ID" version="3.1">
<!--載入spring.xml檔案-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring.xml</param-value>
</context-param>
<!--配置編碼過濾器 防止亂碼-->
<filter>
<filter-name>encodingFilter</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>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!--spring mvc前端控制器-->
<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.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>SpringMVC</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<!--spring監聽器-->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
</web-app>
接下來大家可以去寫一個登陸註冊的案例去實測一下