SSM專案整合
阿新 • • 發佈：2018-12-19
1、新增jar包
2、web.xml檔案
<?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_2_5.xsd" id="WebApp_ID" version="2.5"> <display-name>ssm_demo</display-name> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <!-- 讀取主配置檔案 context-param >> listener >> filter >> servlet context-param:被例項化後轉化為鍵值對，並交給了SerlvetContext --> <context-param> <param-name>contextConfigLocation</param-name> <param-value> classpath:applicationContext.xml </param-value> </context-param> <!-- 該物件的作用是從SerlvetContext物件中獲取鍵值對，並載入spring的配置檔案 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <filter> <filter-name>characterEncoding</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> <!-- 設定值為true，只是用當前設定的編碼格式。而其他位置的 編碼格式設定失效 --> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>characterEncoding</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <servlet> <servlet-name>DispatcherServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springmvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>DispatcherServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> </web-app>
3、配置springmvc.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:util="http://www.springframework.org/schema/util" xmlns:jee="http://www.springframework.org/schema/jee" 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" xmlns:aop="http://www.springframework.org/schema/aop" 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/jee http://www.springframework.org/schema/jee/spring-jee-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 http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd "> <!-- 不攔截靜態資源 --> <mvc:resources location="/js/" mapping="/js/*"/> <mvc:resources location="/css/" mapping="/css/*"/> <mvc:resources location="/html/" mapping="/html/*"/> <!-- 啟用IOC掃描，只掃描controller層 --> <context:component-scan base-package="com.huaruan.ssm.controller"></context:component-scan> <!-- 使用標記，引入對映器，介面卡 --> <mvc:annotation-driven></mvc:annotation-driven> </beans>
4、配置application.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:util="http://www.springframework.org/schema/util" xmlns:jee="http://www.springframework.org/schema/jee" 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" xmlns:aop="http://www.springframework.org/schema/aop" 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/jee http://www.springframework.org/schema/jee/spring-jee-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 http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd "> <!-- 配置DataSource資料來源 ,使用c3p0連線池--> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <property name="driverClass" value="com.mysql.jdbc.Driver"></property> <property name="jdbcUrl" value="jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull"></property> <property name="user" value="root"></property> <property name="password" value="123456"></property> <!-- 指定連線資料庫連線池的最小連線數 --> <property name="minPoolSize" value="10"></property> <!-- 指定連線資料庫連線池的最大連線數 --> <property name="maxPoolSize" value="20"></property> <!--初始化時獲取三個連線，取值應在minPoolSize與maxPoolSize之間。Default: 3 --> <property name="initialPoolSize" value="15"></property> <!-- 指定連線資料庫連線池的連線的最大空閒時間 --> <property name="maxIdleTime" value="120"></property> <!--當連線池中的連線耗盡的時候c3p0一次同時獲取的連線數。Default: 3 --> <property name="acquireIncrement" value="5"></property> <property name="maxStatements" value="100"></property> <!--每60秒檢查所有連線池中的空閒連線。Default: 0 --> <property name="idleConnectionTestPeriod" value="60"></property> <property name="automaticTestTable" value="c3p0testtable"></property> </bean> <!-- 建立SqlSessionFactory，並同時指定資料來源 --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <!-- name 值是固定的，是 org.mybatis.spring.SqlSessionFactoryBean 中的引數 ref 的值對應的是上面配置的資料來源的id,這個是自己定義的 --> <property name="dataSource" ref="dataSource"></property> </bean> <!-- 載入mybatis的對映檔案，並通過對應的介面自動生成實現類 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="sqlSessionFactory" ref="sqlSessionFactory"></property> <property name="basePackage" value="com.huaruan.ssm.dao"></property> </bean> <!-- 事務管理 ....--> <!-- 啟用元件掃描，掃描com包下的類，但不掃描com.isoft.controller包當中類 --> <context:component-scan base-package="com.huaruan.ssm"> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan> </beans>
5、dao層
（1）介面
import org.apache.ibatis.annotations.Param;
public interface UserMapper {
public void deleteUser(@Param("uid") int id);
}（2）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.test.ssm.dao.UserMapper">
<delete id="deleteUser" >
delete from user where uid = #{uid}
</delete>
</mapper>
6、service層
（1）介面
public interface UserService {
boolean deleteUser(int id);
}（2）實現類
import javax.annotation.Resource;
import org.springframework.stereotype.Service;
import com.huaruan.ssm.dao.UserMapper;
@Service
public class UserServiceImpl implements UserService {
@Resource
private UserMapper userMapper;
@Override
public boolean deleteUser(int uid) {
try {
userMapper.deleteUser(uid);
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
}