jdbcTemplate + spring + springmvc 整合案例
阿新 • • 發佈：2022-05-17
jdbcTemplate + spring + springmvc 整合案例 超級詳細滴案例
1.建立maven - webapp專案
2.專案名稱xxx
3.pom.xml
<?xml version="1.0" encoding="UTF-8"?> <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/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.baijie</groupId> <artifactId>SpringmvcProject3.23</artifactId> <version>1.0-SNAPSHOT</version> <packaging>war</packaging> <name>SpringmvcProject3.23 Maven Webapp</name> <!-- FIXME change it to the project's website --> <url>http://www.example.com</url> <properties> <!--統一設定spring框架相關jar的版本號--> <spring.version>5.0.5.RELEASE</spring.version> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <maven.compiler.source>1.7</maven.compiler.source> <maven.compiler.target>1.7</maven.compiler.target> </properties> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>5.0.5.RELEASE</version> </dependency> <!-- aspectj的織入（aop座標） --> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjweaver</artifactId> <version>1.8.13</version> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> <!--<scope>test</scope>--> </dependency> <!-- C3P0連線池 --> <dependency> <groupId>c3p0</groupId> <artifactId>c3p0</artifactId> <version>0.9.1.2</version> </dependency> <!-- Druid連線池 --> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.1.10</version> </dependency> <!-- mysql驅動 --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.39</version> </dependency> <dependency> <grou
4.springmvc_config.xml
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <!--配置註解掃描--> <context:component-scan base-package="baijie"/> <!--讀取外部jdbc的檔案--> <context:property-placeholder location="classpath:jdbc.properties"/> <!--c3p0配置spring連線池--> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <property name="driverClass" value="${driver}"/> <property name="jdbcUrl" value="${url}"/> <property name="user" value="${user}"/> <property name="password" value="${password}"/> <!--配置連線池常用屬性--> <property name="initialPoolSize" value="${initSize}"/> <property name="maxPoolSize" value="${maxSize}"/> <property name="minPoolSize" value="${minSize}"/> </bean> <!--配置jdbc模板物件--> <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate"> <property name="dataSource" ref="dataSource"/> </bean> <!--配置事務管理器物件--> <bean id="transactionManager"class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"></property> </bean> <!--配置內部資源檢視解析器--> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!-- /jsp/success.jsp --> <property name="prefix" value="/WEB-INF/jsp/"></property> <property name="suffix" value=".jsp"></property> </bean> <!--掃描元件：掃描哪些包下面的類添加了註解--> <context:component-scan base-package="baijie"></context:component-scan> </beans>
5.jdbc.properties
driver=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/baijie
user=root
password=123456
initSize=10
minSize=20
maxSize=10006.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> <display-name>Archetype Created Web Application</display-name> <!--配置前端控制器+springMVC配置檔案--> <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_config.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>
7.pojo.User類
package baijie.pojo;
public class User {
private int id;
private String username;
private String password;
public User(int id, String username, String password) {
this.id = id;
this.username = username;
this.password = password;
}
public User() {
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
@Override
public String toString() {
return "User{" +
"id=" + id +
", username='" + username + '\'' +
", password='" + password + '\'' +
'}';
}
}8.dao
package baijie.dao;
import baijie.pojo.User;
import java.util.List;
public interface UserDao {
//查詢資料
public List<User> findAll();
}package baijie.dao;
import baijie.pojo.User;
import org.springframework.jdbc.core.BeanPropertyRowMapper;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Repository;
import javax.annotation.Resource;
import java.util.List;
@Repository("userDao")
public class UserDaoImpl implements UserDao{
//注入jdbcTemplate物件
@Resource
private JdbcTemplate jdbcTemplate;
//查詢所有資料
@Override
public List<User> findAll() {
String sql="select * from user";
List<User> userList=jdbcTemplate.query(sql,
new BeanPropertyRowMapper<User>(User.class));
return userList;
}
}9.service
package baijie.service;
import baijie.pojo.User;
import java.util.List;
public interface UserService {
//查詢資料
public List<User> findAllUser();
}package baijie.service;
import baijie.dao.UserDao;
import baijie.pojo.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Isolation;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;
import java.util.List;
@Service
@Transactional(isolation = Isolation.REPEATABLE_READ,propagation = Propagation.REQUIRED)//配置公共的事務特性
public class UserServiceImpl implements UserService{
//呼叫Dao層
@Autowired
private UserDao userDao;
//查詢所有資料
@Override
public List<User> findAllUser() {
return userDao.findAll();
}
}10.control
package baijie.control;
import baijie.dao.UserDao;
import baijie.pojo.User;
import baijie.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.BeanPropertyRowMapper;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import javax.annotation.Resource;
import javax.servlet.http.HttpServlet;
import java.util.List;
@Controller
@RequestMapping("/user")
public class UserControl {
@Resource
private UserService userService;
//查詢所有
@RequestMapping(value = "/showUser")
public String showUserMethod(){
List<User>allMethod=userService.findAllUser();
System.out.println(allMethod);
return "show";
}
}11.index.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
<h2><a href="user/showUser">點我wwwwwww</a></h2>
</body>
</html>12.show.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
<h1>sssssssssssssss</h1>
</body>
</html>