springCloud 初学demo

java面试题网站：www.javaoffers.com

新建Maven web项目

首先：pom.xml 为：

       <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>org.springframework</groupId>
    <artifactId>gs-rest-service</artifactId>
    <version>0.1.0</version>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.2.RELEASE</version>
    </parent>
    
  <packaging>war</packaging>
  <name/>
  <description/>
  
  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  </properties>
  <dependencies>
         <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>com.jayway.jsonpath</groupId>
            <artifactId>json-path</artifactId>
            <scope>test</scope>
        </dependency>
  
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>javax.servlet.jsp</groupId>
      <artifactId>jsp-api</artifactId>
      <version>2.1</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>org.glassfish</groupId>
      <artifactId>javax.annotation</artifactId>
      <version>3.0.1</version>
    </dependency>
    <dependency>
      <groupId>org.glassfish</groupId>
      <artifactId>javax.ejb</artifactId>
      <version>3.0.1</version>
    </dependency>
    <dependency>
      <groupId>org.jboss.weld</groupId>
      <artifactId>weld-osgi-bundle</artifactId>
      <version>1.0.1-SP3</version>
    </dependency>
    <dependency>
      <groupId>org.glassfish</groupId>
      <artifactId>javax.servlet</artifactId>
      <version>3.0.1</version>
    </dependency>
  </dependencies>
  <build>  
    <plugins>
      <plugin>
        <artifactId>maven-war-plugin</artifactId>
      </plugin>
      <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
        <configuration>
          <source>1.6</source>
          <target>1.6</target>
        </configuration>
      </plugin>
    </plugins>
  </build>
  
  <repositories>
        <repository>
            <id>spring-releases</id>
            <url>https://repo.spring.io/libs-release</url>
        </repository>
    </repositories>
    <pluginRepositories>
        <pluginRepository>
            <id>spring-releases</id>
            <url>https://repo.spring.io/libs-release</url>
        </pluginRepository>
    </pluginRepositories>

</project>

创建Controller

package com.mh.springcloud.controler;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;


import com.mh.springcloud.pojo.China;   
    
@RestController
public class IndexAcction {  
    
@RequestMapping("/demo")     
public China demo(String name,Integer age){
name="fds";  
age = 23;

return new China(2, name, age);
}

}

pojo 类：

package com.mh.springcloud.pojo;


import java.io.Serializable;


public class China implements Serializable{


private Integer Id;

private String name;

private Integer age;


public Integer getId() {
return Id;
}


public void setId(Integer id) {
Id = id;
}


public String getName() {
return name;
}


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

}

public Integer getAge() {
return age;
}


public void setAge(Integer age) {
this.age = age;
}


public China(Integer id, String name, Integer age) {
super();
Id = id;
this.name = name;
this.age = age;
}

}

最后一个Application类用于启动服务器并且自动部署该项目

package com.mh.springcloud;


import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;


@SpringBootApplication
public class Application {     


public static void main(String[] args) {
 SpringApplication.run(Application.class, args);

}

这里要注意：application类要在所有类的最外面。应为这样会扫描application包下面的所有子包的类。

测试：在浏览器中访问：