1.创建Maven项目,项目名称springdemo22,如图所示
2.配置Maven,修改项目中的pom.xml文件,修改内容如下
<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>1.0.0</modelVersion> <groupId>shequ</groupId> <artifactId>springdemo13</artifactId> <version>0.0.1-SNAPSHOT</version> <properties> <java.version>1.7</java.version> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> </properties> <repositories> <repository> <id>codelds</id> <url>https://code.lds.org/nexus/content/groups/main-repo</url> </repository> </repositories> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.10</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>4.1.4.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>4.1.4.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>4.1.4.RELEASE</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.34</version> </dependency> </dependencies> <build/> </project>
3.在src/main/java下创建实体Bean Forum,包名(com.mycompany.shequ.bean)如图所示
4.实体Bean Forum的内容如下
package com.mycompany.shequ.bean;
public class Forum {
private int fid;
private String name;
public int getFid() {
return fid;
}
public void setFid(int fid) {
this.fid = fid;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
5.在src/main/java下创建接口IForumDao,包名(com.mycompany.shequ.service)如图所示
6.接口IForumDao的内容如下
package com.mycompany.shequ.service;
import com.mycompany.shequ.bean.Forum;
public interface IForumDao {
public Forum getForumById(int fid);
}
7.在src/main/java下创建接口IForumDao的实现类ForumDaoImpl,包名(com.mycompany.shequ.service.impl)如图所示
8.实现类ForumDaoImpl的内容如下
package com.mycompany.shequ.service.impl;
import com.mycompany.shequ.bean.Forum;
import com.mycompany.shequ.service.IForumDao;
public class ForumDaoImpl implements IForumDao {
public Forum getForumById(int fid) {
Forum forum = new Forum();
forum.setFid(fid);
forum.setName("@Configuration");
return forum;
}
}
9.在src/main/java下创建配置类AppConfig,包名(com.mycompany.shequ.config)如图所示
10.配置类AppConfig的内容如下
package com.mycompany.shequ.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import com.mycompany.shequ.service.IForumDao;
import com.mycompany.shequ.service.impl.ForumDaoImpl;
@Configuration
public class AppConfig {
@Bean(name="forumdao")
public IForumDao forumDao(){
return new ForumDaoImpl();
}
}
11.在src/test/java下创建测试类ForumDaoTest,包名(com.mycompany.shequ.service),如图所示
12.测试类ForumDaoTest的内容如下
package com.mycompany.shequ.service;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import com.mycompany.shequ.bean.Forum;
import com.mycompany.shequ.config.AppConfig;
import com.mycompany.shequ.service.IForumDao;
public class ForumDaoTest {
/**
* spring 的自动装配Beans,通过@Qualifier装配指定bean
*/
@Test
public void getForumByIdTest(){
ApplicationContext context = new AnnotationConfigApplicationContext(AppConfig.class);
IForumDao forumDao = (IForumDao) context.getBean("forumdao");
Forum forum = forumDao.getForumById(1);
System.out.println(forum.getName());
}
}
13.在测试类ForumDaoTest的getForumByIdTest方法上右键运行,输出结果如图所示
本文转自 素颜猪 51CTO博客，原文链接:http://blog.51cto.com/suyanzhu/1909641
