<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>SpringJDBCTest1</groupId> <artifactId>SpringJDBCTest1</artifactId> <packaging>war</packaging> <version>1.0-SNAPSHOT</version> <name>SpringJDBCTest1 Maven Webapp</name> <url>http://maven.apache.org</url> <dependencies> <!--spring--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> <version>4.3.1.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>4.3.1.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>4.3.1.RELEASE</version> </dependency> <!--Spring Web + Spring MVC--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>4.3.1.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>4.3.1.RELEASE</version> </dependency> <!--NoClassDefFoundError: javax/servlet/jsp/jstl/core/Config--> <!-- https://mvnrepository.com/artifact/javax.servlet/jstl --> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>taglibs</groupId> <artifactId>standard</artifactId> <version>1.1.2</version> </dependency> <!--servlet/jsp api start--> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>2.5</version> </dependency> <!-- https://mvnrepository.com/artifact/javax.servlet.jsp/jsp-api --> <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>jsp-api</artifactId> <version>2.2</version> </dependency> <!--mysql driver--> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.6</version> </dependency> <!--jdbc--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>3.0.5.RELEASE</version> </dependency> <!--c3p0--> <dependency> <groupId>com.mchange</groupId> <artifactId>c3p0</artifactId> <version>0.9.5.1</version> </dependency> <!--aspectj--> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjweaver</artifactId> <version>1.8.6</version> </dependency> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjrt</artifactId> <version>1.8.6</version> </dependency> <!--mybatis--> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.3.0</version> </dependency> <!--mybatis spring整合--> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.2.3</version> </dependency> </dependencies> <build> <finalName>SpringJDBCTest1</finalName> <plugins> <!--servlet容器 jetty插件--> <plugin> <groupId>org.eclipse.jetty</groupId> <artifactId>jetty-maven-plugin</artifactId> <version>9.3.10.v20160621</version> </plugin> <!--mybatis 逆向工程插件--> <plugin> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-maven-plugin</artifactId> <version>1.3.2</version> <configuration> <verbose>true</verbose> <overwrite>true</overwrite> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <configuration> <source>1.7</source> <target>1.7</target> </configuration> </plugin> </plugins> </build> </project>
2 src下建java包和类:
实体类:Employee.java
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.
时间: 2024-10-13 21:10:59