时间：2021-07-01 10:21:17 帮助过：9人阅读
package com.springjdbc.entities;
/**
* Created by wanggenshen_sx on 2016/12/23.
*/
public class Employee {
private int id;
private String lastName;
private String email;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
@Override
public String toString() {
return "Employee [id=" + id + ", lastName=" + lastName + ", email="
+ email+" ]" ;
}
}
持久层类：EmployeeDao.java
这里注入JdbcTemplate,使用SpringJDBC框架。
package com.springjdbc.dao;
import com.springjdbc.entities.Employee;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.BeanPropertyRowMapper;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.stereotype.Repository;
/**
* Created by wanggenshen_sx on 2016/12/23.
*/
@Repository
public class EmployeeDao {
@Autowired
private JdbcTemplate jdbcTemplate;
public Employee get(int id){
String sql="SELECT id, lastName,email FROM employee WHERE id=?";
RowMapper<Employee> rowMapper=new BeanPropertyRowMapper<>(Employee.class);
Employee employee=jdbcTemplate.queryForObject(sql, rowMapper,id);
return employee;
}
}
控制器：EmployeeController.java
package com.springjdbc.controller;
import com.springjdbc.dao.EmployeeDao;
import com.springjdbc.entities.Employee;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.jdbc.core.BeanPropertyRowMapper;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import java.util.List;
import java.util.Map;
/**
* Created by wanggenshen_sx on 2016/12/23.
*/
@Controller
public class EmployeeController {
private ApplicationContext ctx=null;
private JdbcTemplate jdbcTemplate=null;
private EmployeeDao employeeDao ;
private NamedParameterJdbcTemplate namedParameterJdbcTemplate=null;
{
ctx=new ClassPathXmlApplicationContext("applicationContext.xml");
jdbcTemplate =(JdbcTemplate) ctx.getBean("jdbcTemplate");
employeeDao = ctx.getBean(EmployeeDao.class);
namedParameterJdbcTemplate=(NamedParameterJdbcTemplate) ctx.getBean("namedParameterJdbcTemplate");
}
@RequestMapping(value = "/listAllEmployee",method = RequestMethod.GET)
public String list(Map<String,Object> map){
String sql="SELECT id, lastName,email FROM employee";
RowMapper<Employee> rowMapper=new BeanPropertyRowMapper<>(Employee.class);
List<Employee> employees=jdbcTemplate.query(sql, rowMapper);
map.put("employees",employees);
return "list";
}
}
3 配置sping和spingmvc的配置文件：
applicationContext.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: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/context http://www.springframework.org/schema/context/spring-context-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.springjdbc.dao"></context:component-scan>
<!-- 导入资源文件 -->
<context:property-placeholder location="classpath:db.properties"/>
<!-- 配置C3P0数据源 -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="user" value="${jdbc.user}"></property>
<property name="password" value="${jdbc.password}"></property>
<property name="driverClass" value="${jdbc.driverClass}"></property>
<property name="jdbcUrl" value="${jdbc.jdbcUrl}"></property>
<property name="initialPoolSize" value="${jdbc.initPoolSize}"></property>
<property name="maxPoolSize" value="${jdbc.maxPoolSize}"></property>
</bean>
<!-- 配置spring-jdbcTemplate模板 -->
<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
<property name="dataSource" ref="dataSource"></property>
</bean>
<!-- 配置 NamedParameterJdbcTemplate,
该对象可以使用具名参数, 其没有无参数的构造器, 所以必须为其构造器指定参数 -->
<bean id="namedParameterJdbcTemplate" class="org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate">
<constructor-arg ref="dataSource"></constructor-arg>
</bean>
<!-- 配置事务管理器 -->
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>
<!-- 启用事务注解 -->
<tx:annotation-driven transaction-manager="transactionManager"/>
<!-- spring注解模式配置 -->
<context:annotation-config/>
</beans>
springmvc-servlet.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:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd">
<mvc:annotation-driven />
<mvc:default-servlet-handler/>
<!-- 启动包扫描功能 -->
<context:component-scan base-package="com.springjdbc.controller" />
<!-- 对模型视图名称的解析，在请求时模型视图名称添加前后缀 -->
<bean id="viewResolverCommon" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/"/>
<property name="suffix" value=".jsp"/>
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
</bean>
</beans>
4 配置web.xml
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
version="3.0">
<!--配置springmvc DispatcherServlet-->
<servlet>
<servlet-name>springmvc-servlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc-servlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springmvc-servlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
</web-app>
5 建显示页面list.jsp
<%--
Created by IntelliJ IDEA.
User: wanggenshen_sx
Date: 2016/12/23
Time: 16:56
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html>
<head>
<title>Show Page</title>
</head>
<body>
<table border="1" cellspacing="0" cellpadding="10">
<tr>
<th>ID</th>
<th>LastName</th>
<th>Email</th>
</tr>
<c:forEach items="${employees}" var="emp">
<tr>
<th>${emp.id}</th>
<th>${emp.lastName}</th>
<th>${emp.email}</th>
</tr>
</c:forEach>
</table>
</body>
</html>
项目结构：
end.利用Intellij+MAVEN搭建SpringJDBC+MySql+SpringMVC项目详解
标签：void 对象 set web templates spin 3.0.5 erb ini