Spring抽象JDBC，使用JdbcTemplate

Posted 2020-09-20 奋斗的少年WH

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<?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:mvc="http://www.springframework.org/schema/mvc"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xmlns:c="http://www.springframework.org/schema/c"
	xmlns:cache="http://www.springframework.org/schema/cache" xmlns:jdbc="http://www.springframework.org/schema/jdbc" xmlns:tx="http://www.springframework.org/schema/tx"
	xsi:schemaLocation="http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-4.0.xsd
		http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache-4.0.xsd
		http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
		http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
		http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd">
	
	<context:component-scan base-package="com.icss.hr"></context:component-scan>
	<!-- 1.配置数据源 -->
	<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
		<property name="jdbcUrl" value="jdbc:mysql://localhost:3306/hr"/>
		<property name="driverClass" value="com.mysql.jdbc.Driver"/>
		<property name="user" value="root" />
		<property name="password" value="admin" />
		<property name="initialPoolSize" value="3" />
		<property name="maxPoolSize" value="10" />
		<property name="minPoolSize" value="1" />
		<property name="acquireIncrement" value="3" />
		<property name="maxIdleTime" value="60" />
	</bean>
	<!-- 2.JDBCTemplate -->
	<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
		<property name="dataSource" ref="dataSource"></property>
	</bean>
	
	<!-- 3.配置事务 -->
	<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<property name="dataSource" ref="dataSource"></property>
	</bean>
	<tx:advice id="txa" transaction-manager="transactionManager">
		<tx:attributes>
			<tx:method name="add*" isolation="DEFAULT" propagation="REQUIRED" read-only="false"/>
			<tx:method name="update*" isolation="DEFAULT" propagation="REQUIRED" read-only="false"/>
			<tx:method name="delete*" isolation="DEFAULT" propagation="REQUIRED" read-only="false"/>
			<tx:method name="query*"  read-only="true"/>
		</tx:attributes>
	</tx:advice>
	<aop:config>
		<aop:pointcut expression="execution(* com.icss.hr.*.service.*.*(..))" id="txCut"/>
		<aop:advisor advice-ref="txa" pointcut-ref="txCut"/>
	</aop:config>
	
	<!-- 配置视图解析器 -->
		<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<!--  跳转路径 字符串前面加上路径 -->
		
		<!-- view里面的字符串加上后缀 -->
		<property name="suffix" value=".jsp"></property>		
	</bean>
</beans>

Dept.java

package com.icss.hr.dept.pojo;
/**
 * 部门类
 * @author Administrator
 *
 */
public class Dept {
	private int dept_id;
	private String dept_name;
	private String dept_loc;
	
	
	public Dept() {
		super();
	}
	public Dept(int dept_id, String dept_name, String dept_loc) {
		super();
		this.dept_id = dept_id;
		this.dept_name = dept_name;
		this.dept_loc = dept_loc;
	}
	public int getDept_id() {
		return dept_id;
	}
	public void setDept_id(int dept_id) {
		this.dept_id = dept_id;
	}
	public String getDept_name() {
		return dept_name;
	}
	public void setDept_name(String dept_name) {
		this.dept_name = dept_name;
	}
	public String getDept_loc() {
		return dept_loc;
	}
	public void setDept_loc(String dept_loc) {
		this.dept_loc = dept_loc;
	}
	@Override
	public String toString() {
		return "Dept [dept_id=" + dept_id + ", dept_name=" + dept_name + ", dept_loc=" + dept_loc + "]";
	}
}

Dao.java

package com.icss.hr.dept.dao;

import java.util.List;


import org.springframework.stereotype.Repository;

import com.icss.hr.dept.pojo.Dept;
@Repository
public interface DeptDao {
	public boolean addDept(Dept dept);
	public boolean updateDept(Dept dept);
	public boolean deleteDept(int dept_id);
	
	public List<Dept> queryAllDept();
	public Dept queryDeptById(int dept_id);
	
	
}

DaoImpl.java

package com.icss.hr.dept.dao;

import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.stereotype.Repository;

import com.icss.hr.dept.pojo.Dept;
@Repository
public class DeptDaoImpl implements DeptDao {
	
	@Autowired
	private JdbcTemplate jdbcTemplate;
		
	public JdbcTemplate getJdbcTemplate() {
		return jdbcTemplate;
	}

	public void setJdbcTemplate(JdbcTemplate jdbcTemplate) {
		this.jdbcTemplate = jdbcTemplate;
	}

	@Override
	public boolean addDept(Dept dept) {
		StringBuilder sql = new StringBuilder()
				.append("INSERT INTO dept ")
				.append("VALUES(?,?,?)");
		System.out.println(sql);
		int res = jdbcTemplate.update(sql.toString(),dept.getDept_id(),dept.getDept_name(),dept.getDept_loc());		
		return res > 0 ? true : false;
	}

	@Override
	public boolean updateDept(Dept dept) {
		StringBuilder sql = new StringBuilder()
				.append("update dept ")
				.append("SET dept_name=?,dept_loc=? ")
				.append("WHERE dept_id=?");
		System.out.println(sql);
		int res = jdbcTemplate.update(sql.toString(),dept.getDept_name(),dept.getDept_loc(),dept.getDept_id());		
		return res > 0 ? true : false;
	}

	@Override
	public boolean deleteDept(int dept_id) {
		StringBuilder sql = new StringBuilder()
				.append("DELETE FROM dept ")
				.append("WHERE dept_id=?");
		System.out.println(sql);
		int res = jdbcTemplate.update(sql.toString(),dept_id);		
		return res > 0 ? true : false;
	}

	@Override
	public List<Dept> queryAllDept() {
		StringBuilder sql = new StringBuilder()
				.append("SELECT *  ")
				.append("FROM dept");
		
		return jdbcTemplate.query(sql.toString(), new RowMapper<Dept>() {

			@Override
			public Dept mapRow(ResultSet rs, int arg1) throws SQLException {
				//解析行				
				Dept d = new Dept(rs.getInt("dept_id"),rs.getString(2),rs.getString(3));
				return d;
			}
		});
		
	}

	@Override
	public Dept queryDeptById(int dept_id) {
		// TODO Auto-generated method stub
		return null;
	}

}

DeptService.java

package com.icss.hr.dept.service;

import java.util.List;

import org.springframework.stereotype.Service;

import com.icss.hr.dept.pojo.Dept;
@Service
public interface DeptService {
	public boolean addDept(Dept dept);
	public boolean updateDept(Dept dept);
	public boolean deleteDept(int dept_id);
	public List<Dept> queryDepts();
}

DeptServiceImpl.java

package com.icss.hr.dept.service;

import java.util.List;

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

import com.icss.hr.dept.dao.DeptDao;
import com.icss.hr.dept.pojo.Dept;
@Service
public class DeptServiceImpl implements DeptService {
	@Autowired
	@Qualifier(value="deptDaoImpl")
	private DeptDao deptDao;
	
	public DeptDao getDeptDao() {
		return deptDao;
	}

	public void setDeptDao(DeptDao deptDao) {
		this.deptDao = deptDao;
	}

	@Override
	public boolean addDept(Dept dept) {
		//日志文件
		
		return deptDao.addDept(dept);
	}

	@Override
	public boolean updateDept(Dept dept) {
		// TODO Auto-generated method stub
		return deptDao.updateDept(dept);
	}

	@Override
	public boolean deleteDept(int dept_id) {
		// TODO Auto-generated method stub
		return deptDao.deleteDept(dept_id);
	}

	@Override
	public List<Dept> queryDepts() {
		// TODO Auto-generated method stub
		return deptDao.queryAllDept();
	}

}

DeptAction.java

package com.icss.hr.dept.controller;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

import com.icss.hr.dept.pojo.Dept;
import com.icss.hr.dept.service.DeptService;

@Controller
@RequestMapping("/dept")
public class DeptAction {
	@Autowired
	@Qualifier(value="deptServiceImpl")
	private DeptService deptService;
		
	public DeptService getDeptService() {
		return deptService;
	}
	public void setDeptService(DeptService deptService) {
		this.deptService = deptService;
	}
	
	@RequestMapping("/add.action")
	public String addDept(Model mo,Dept dept){
		boolean res = deptService.addDept(dept);		
		return res ? "redirect:/dept/show.action" : "../error";		
	}
	@RequestMapping("/show.action")
	public String showDept(Model mo){
		List<Dept> depts = deptService.queryDepts();
		mo.addAttribute("depts",depts);
		return "../show";
	}
	@RequestMapping("/delete.action")
	public String deleteDept(int dept_id){
		boolean res = deptService.deleteDept(dept_id);		
		return res ? "redirect:/dept/show.action" : "../error";
	}
	@RequestMapping("/update.action")
	public String updateDept(Dept dept){
		System.out.println(dept.getDept_id());
		boolean res = deptService.updateDept(dept);	
		System.out.println(res);
		return res ? "redirect:/dept/show.action" : "../error";
	}
}

TestDept.java

package com.icss.hr.dept.test;

import java.util.List;

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

import com.icss.hr.dept.pojo.Dept;
import com.icss.hr.dept.service.DeptService;

public class TestDept {
	@Test
	public void test(){
		ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
		DeptService service = (DeptService)ac.getBean("deptServiceImpl");
		boolean b = service.updateDept(new Dept(7,"国防部","北京"));
		System.out.println(b);
	}

}

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