java框架--spring+mybatis 注解整合

Posted 2020-10-20 周无极

package cn.sxt.dao;

import java.util.List;

import org.apache.ibatis.annotations.Select;

import cn.sxt.vo.User;

public interface UserMapper {
    
    @Select("select * from user")
    public List<User> selectUser(); 
}

package cn.sxt.service;

import java.util.List;

import cn.sxt.vo.User;

public interface UserService {
    public List<User> selectUser(); 
}

package cn.sxt.service.impl;

import java.util.List;

import cn.sxt.dao.UserMapper;
import cn.sxt.service.UserService;
import cn.sxt.vo.User;

public class UserServiceImpl implements UserService{
    private UserMapper userMapper = null;
    public void setUserMapper(UserMapper userMapper) {
        this.userMapper = userMapper;
    }
    @Override
    public List<User> selectUser() {
        System.out.println(userMapper);
        return userMapper.selectUser();
    }
}

package cn.sxt.test;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import cn.sxt.service.UserService;

public class Test {
    public static void main(String[] args) {
        ApplicationContext context = new ClassPathXmlApplicationContext("beans.xml");
        UserService userService = (UserService)context.getBean("userService");
        System.out.println(userService.selectUser().size());
    }
}

package cn.sxt.vo;

public class User {
    private int id;
    private String name;
    private String pwd;
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getPwd() {
        return pwd;
    }
    public void setPwd(String pwd) {
        this.pwd = pwd;
    }
}

<?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:aop="http://www.springframework.org/schema/aop"
    xmlns:tx="http://www.springframework.org/schema/tx"
    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/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
    <!-- 配置数据源 -->
    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
        <property name="url" value="jdbc:mysql://localhost:3306/orcl"/>
        <property name="username" value="root"/>
        <property name="password" value="123456"/>
    </bean>
    <!-- 声明式事务配置 开始 -->
    <!-- 配置事务管理器 -->
    <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>
    <!-- 配置事务通知 -->
    <tx:advice id="txAdvice" transaction-manager="txManager">
        <tx:attributes>
            <!-- 配置哪些方法使用什么样的事务,配置事务的传播特性 -->
            <tx:method name="add" propagation="REQUIRED"/>
            <tx:method name="insert" propagation="REQUIRED"/>
            <tx:method name="update" propagation="REQUIRED"/>
            <tx:method name="delete" propagation="REQUIRED"/>
            <tx:method name="remove*" propagation="REQUIRED"/>
            <tx:method name="get" read-only="true"/>
            <tx:method name="*" propagation="REQUIRED"/>
        </tx:attributes>
    </tx:advice>
    <aop:config>
        <aop:pointcut expression="execution(* cn.sxt.service.impl.*.*(..))" id="pointcut"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="pointcut"/>
    </aop:config>
    <!-- 声明式事务配置 结束 -->
    <!-- 配置sqlSessionFactory -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
    </bean>
    <bean id="userMapper" class="org.mybatis.spring.mapper.MapperFactoryBean">
        <property name="mapperInterface" value="cn.sxt.dao.UserMapper"/>
        <property name="sqlSessionFactory" ref="sqlSessionFactory"/>
    </bean>
    <bean id="userService" class="cn.sxt.service.impl.UserServiceImpl">
        <property name="userMapper" ref="userMapper"/>
    </bean>
</beans>

<?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>
    <typeAliases>
        <package name="cn.sxt.vo"/>
    </typeAliases>
    
    <mappers>
        <package name="cn.sxt.dao.UserMapper"/>
    </mappers> 
</configuration>

/*
Navicat MySQL Data Transfer

Source Server         : test
Source Server Version : 50520
Source Host           : localhost:3306
Source Database       : orcl

Target Server Type    : MYSQL
Target Server Version : 50520
File Encoding         : 65001

Date: 2018-01-07 12:32:39
*/

SET FOREIGN_KEY_CHECKS=0;

-- ----------------------------
-- Table structure for `user`
-- ----------------------------
DROP TABLE IF EXISTS `user`;
CREATE TABLE `user` (
  `name` varchar(10) DEFAULT NULL,
  `id` int(20) NOT NULL AUTO_INCREMENT,
  `pwd` varchar(30) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8;

-- ----------------------------
-- Records of user
-- ----------------------------
INSERT INTO `user` VALUES (\'澶т緺\', \'1\', \'4444\');
INSERT INTO `user` VALUES (\'澶т緺\', \'2\', \'4444\');

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