Java编程之Spring Boot通过JMSTemplate 整合ActiveMQ

一.项目结构
本教程创建的应用程序结构如下:

二.从Spring Initializr创建Spring boot应用程序

<dependencies>
	<dependency>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-jersey</artifactId>
	</dependency>
	<dependency>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-test</artifactId>
		<scope>test</scope>
	</dependency>
</dependencies>

四.创建JAX-RS REST资源文件

package com.howtodoinjava.jerseydemo;

import java.net.URI;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;

import javax.ws.rs.Consumes;
import javax.ws.rs.DELETE;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Response;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlRootElement;

@XmlAccessorType(XmlAccessType.NONE)
@XmlRootElement(name = "users")
@Path("/users")
public class UserResource 
{
	private static Map<Integer, User> DB = new HashMap<>(); 
	
	@GET
	@Produces("application/json")
	public Users getAllUsers() {
		Users users = new Users();
		users.setUsers(new ArrayList<>(DB.values()));
		return users;
	}
	
	@POST
	@Consumes("application/json")
	public Response createUser(User user) throws URISyntaxException 
	{
		if(user.getFirstName() == null || user.getLastName() == null) {
			return Response.status(400).entity("Please provide all mandatory inputs").build();
		}
		user.setId(DB.values().size()+1);
		user.setUri("/user-management/"+user.getId());
		DB.put(user.getId(), user);
		return Response.status(201).contentLocation(new URI(user.getUri())).build();
	}

	@GET
	@Path("/{id}")
	@Produces("application/json")
	public Response getUserById(@PathParam("id") int id) throws URISyntaxException 
	{
		User user = DB.get(id);
		if(user == null) {
			return Response.status(404).build();
		}
		return Response
				.status(200)
				.entity(user)
				.contentLocation(new URI("/user-management/"+id)).build();
	}

	@PUT
	@Path("/{id}")
	@Consumes("application/json")
	@Produces("application/json")
	public Response updateUser(@PathParam("id") int id, User user) throws URISyntaxException 
	{
		User temp = DB.get(id);
		if(user == null) {
			return Response.status(404).build();
		}
		temp.setFirstName(user.getFirstName());
		temp.setLastName(user.getLastName());
		DB.put(temp.getId(), temp);
		return Response.status(200).entity(temp).build();
	}

	@DELETE
	@Path("/{id}")
	public Response deleteUser(@PathParam("id") int id)	throws URISyntaxException {
		User user = DB.get(id);
		if(user != null) {
			DB.remove(user.getId());
			return Response.status(200).build();
		}
		return Response.status(404).build();
	}
	
	static 
	{
		User user1 = new User();
		user1.setId(1);
		user1.setFirstName("John");
		user1.setLastName("Wick");
		user1.setUri("/user-management/1");

		User user2 = new User();
		user2.setId(2);
		user2.setFirstName("Harry");
		user2.setLastName("Potter");
		user2.setUri("/user-management/2");
		
		DB.put(user1.getId(), user1);
		DB.put(user2.getId(), user2);
	}
}

package com.howtodoinjava.jerseydemo;
 
import java.util.ArrayList;

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
 
@XmlAccessorType(XmlAccessType.NONE)
@XmlRootElement(name = "users")
public class Users {
 
    @XmlElement(name="user")
    private ArrayList<User> users;
 
    public ArrayList<User> getUsers() {
        return users;
    }
 
    public void setUsers(ArrayList<User> users) {
        this.users = users;
    }
}

package com.howtodoinjava.jerseydemo;
 
import java.io.Serializable;
 
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
 
@XmlAccessorType(XmlAccessType.NONE)
@XmlRootElement(name = "user")
public class User implements Serializable {
 
    private static final long serialVersionUID = 1L;
 
    @XmlAttribute(name = "id")
    private int id;
 
    @XmlAttribute(name="uri")
    private String uri;
 
    @XmlElement(name = "firstName")
    private String firstName;
 
    @XmlElement(name = "lastName")
    private String lastName;
 
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
    public String getFirstName() {
        return firstName;
    }
    public void setFirstName(String firstName) {
        this.firstName = firstName;
    }
    public String getLastName() {
        return lastName;
    }
    public void setLastName(String lastName) {
        this.lastName = lastName;
    }
    public String getUri() {
        return uri;
    }
    public void setUri(String uri) {
        this.uri = uri;
    }
}

五.Jersey配置

package com.howtodoinjava.jerseydemo;

import org.glassfish.jersey.server.ResourceConfig;
import org.springframework.stereotype.Component;

@Component
public class JerseyConfig extends ResourceConfig 
{
	public JerseyConfig() 
	{
		register(UserResource.class);
	}
}

package com.howtodoinjava.jerseydemo;

import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.support.SpringBootServletInitializer;

@SpringBootApplication
public class JerseydemoApplication extends SpringBootServletInitializer 
{
	public static void main(String[] args) 
	{
		new JerseydemoApplication().configure(new SpringApplicationBuilder(JerseydemoApplication.class)).run(args);
	}
}

六.demo

Access /users resource

Access /users/1 resource

spring boot java编程

https://www.leftso.com/article/217.html