Spring boot 简单例子

Spring boot 简单例子


application.properties //默认为application.properties

#Server
server.port=8090
#需要加的URL前缀
server.context-path=/v1

#LOGGING
logging.pattern.level=INFO

Test.id=8090
Test.name=xing

package com.cesmart;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;

import com.cesmart.entity.TestBean;
//@SpringBootApplication注解等价于以默认属性使用@Configuration，@EnableAutoConfiguration和@ComponentScan
//@Configuration //
@EnableAutoConfiguration
//@ComponentScan(basePackages = "com.cesmart.config")	//扫描那些包得到bean
@ComponentScan(basePackages = "com.cesmart")	//扫描那些包得到bean,@ComponentScan({"com.teradata.notification","com.teradata.dal"})
public class Application {
	public static void main(String[] args) {
		ApplicationContext applicationContext = SpringApplication.run(Application.class, args);

		TestBean testBean = (TestBean) applicationContext.getBean("testBean");
		System.out.println("TestBean == " + testBean.toString());
	}
}

package com.cesmart.entity;

public class TestBean {
	private String id;
	private String name;

	public String getId() {
		return id;
	}

	public void setId(String id) {
		this.id = id;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	@Override
	public String toString() {
		return "TestBean [id=" + id + ", name=" + name + "]";
	}

	public TestBean(String id, String name) {
		super();
		this.id = id;
		this.name = name;
	}

}

package com.cesmart.config;

import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import com.cesmart.entity.TestBean;

@Configuration // 相当于定义XML文件
@ConfigurationProperties(prefix = "Test") // 所需字段以什么开头的
public class TestConfig {
	private String id; // 需要它的set方法才可以进行Properties文件内容的引入
	private String name;

	@Bean(name = "testBean") // 相当于XML里配置bean
	public TestBean testBean() {

		TestBean client = new TestBean(id, name);
		return client;
	}

	public String getId() {
		return id;
	}

	public void setId(String id) {
		this.id = id;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

}

package com.cesmart.controller;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController	//返回的是body的数据，不是视图名称,//相当于@ResponseBody ＋ @Controller合在一起的作用。
public class WebTest {
	@RequestMapping("/webTest")  //http://localhost:8090/webTest访问到它
	public String webTest(){
		System.out.println("webTest");
		return "webTest";
	}
}