maven 集成spring

1、简历maven工程。

　　eclipse开发工具建立名为spring-maveng的工程

2、在pom.xml文件中引入所需的包

<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.mr.cheng</groupId>
    <artifactId>spring-maven</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>spring-maven</name>
    <url>http://maven.apache.org</url>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <dependencies>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>3.2.6.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>3.2.6.RELEASE</version>
        </dependency>
        
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
             <version>4.9</version>
        </dependency>
        
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>3.2.6.RELEASE</version>
        </dependency>
    </dependencies>
</project>

3、新建实体类与dao类

实体类Use代码

package com.mr.cheng.bean;

public class User {
    private long id;
    private int age;
    private String username;
    private String password;
    public long getId() {
        return id;
    }
    public void setId(long id) {
        this.id = id;
    }
    @Override
    public String toString() {
        return "User [id=" + id + ", age=" + age + ", username=" + username
                + ", password=" + password + "]";
    }
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
    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;
    }
}

UserDao代码

package com.mr.cheng.dao;

import com.mr.cheng.bean.User;

public interface UserDao {
    public void addUser(User user);
}

UserDaoImpl实现类代码

package com.mr.cheng.dao.impl;

import com.mr.cheng.bean.User;
import com.mr.cheng.dao.UserDao;

public class UserDaoImpl implements UserDao {

    public void addUser(User user) {
        
        System.out.println("添加用户！" + user.toString());
    }

}

4、spring bean文件的配置

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       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">

    <bean id="userDao" class="com.mr.cheng.dao.impl.UserDaoImpl">
    </bean>

</beans>

5、测试类

package com.mr.cheng.test;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.AbstractJUnit4SpringContextTests;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import com.mr.cheng.bean.User;
import com.mr.cheng.dao.UserDao;
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("/spring-beans.xml")
public class UserTest{
    @Autowired
    public UserDao userDao;
    @Test
    public void testSpringTesgt(){
        //ApplicationContext ct = new ClassPathXmlApplicationContext("spring-beans.xml");
        //userDao = (UserDao) ct.getBean("userDao");
        User  user = new User();
        user.setId(1);
        user.setAge(25);
        user.setUsername("username");
        user.setPassword("password");
        userDao.addUser(user);
        
    }

}