Jersey(1.19.1) - Hello World, Get started with a Web application

1. Maven Dependency

<properties>

    <jersey.version>1.19.1</jersey.version>

</properties>

<dependencies>

    <dependency>

        <groupId>com.sun.jersey</groupId>

        <artifactId>jersey-core</artifactId>

        <version>${jersey.version}</version>

    </dependency>

    <dependency>

        <groupId>com.sun.jersey</groupId>

        <artifactId>jersey-server</artifactId>

        <version>${jersey.version}</version>

    </dependency>

    <dependency>

        <groupId>com.sun.jersey</groupId>

        <artifactId>jersey-servlet</artifactId>

        <version>${jersey.version}</version>

    </dependency>

    <dependency>

        <groupId>com.sun.jersey</groupId>

        <artifactId>jersey-json</artifactId>

        <version>${jersey.version}</version>

    </dependency>

    <dependency>

        <groupId>com.sun.jersey</groupId>

        <artifactId>jersey-client</artifactId>

        <version>${jersey.version}</version>

    </dependency>

    <dependency>

        <groupId>org.projectlombok</groupId>

        <artifactId>lombok</artifactId>

        <version>1.16.4</version>

    </dependency>

</dependencies>

2. JavaBean

package com.huey.hello.jersey.bean;

import javax.xml.bind.annotation.XmlRootElement;

import lombok.AllArgsConstructor;

import lombok.Data;

import lombok.NoArgsConstructor;

@NoArgsConstructor

@AllArgsConstructor

@Data

@XmlRootElement

public class Book {

    private String title;

    private String[] author;

    private String publisher;

    private double price;

    private String isbn;

}

3. RESTful Web Services

package com.huey.hello.jersey.service;

import java.util.ArrayList;

import java.util.List;

import javax.ws.rs.Consumes;

import javax.ws.rs.GET;

import javax.ws.rs.POST;

import javax.ws.rs.Path;

import javax.ws.rs.PathParam;

import javax.ws.rs.Produces;

import javax.ws.rs.WebApplicationException;

import javax.ws.rs.core.MediaType;

import com.huey.hello.jersey.bean.Book;

@Path("/books")

public class BookService {

    private static List<Book> books;

    static {

        books = new ArrayList<Book>();

        books.add(new Book("高性能MySQL",

                new String[]{"Baron Schwartz", "Peter Zaitsev"},

                "电子工业出版社",

                128.00,

                "9787121198854"));

        books.add(new Book("HTTP权威指南",

                new String[]{"David Gourley", "Brian Totty"},

                "人民邮电出版社",

                109.00,

                "9787115281487"));

    }

    @GET

    @Produces( {MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML} )

    public List<Book> getBooks() {

        return books;

    }

    @GET

    @Path("/{isbn}")

    @Produces( {MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML} )

    public Book getBook(@PathParam("isbn") String isbn) {

        for (Book book : books) {

            if (book.getIsbn().equals(isbn)) {

                return book;

            }

        }

        throw new WebApplicationException(404);

    }

    @POST

    @Consumes( {MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML} )

    public void addBook(Book book) {

        books.add(book);

    }

}

4. web.xml

<?xml version="1.0" encoding="UTF-8"?>

<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

    xmlns="http://java.sun.com/xml/ns/javaee"

    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"

    version="2.5">

    <display-name>hello-jersey</display-name>

    <welcome-file-list>

        <welcome-file>index.html</welcome-file>\

    </welcome-file-list>

    <servlet>

        <servlet-name>JerseyRESTService</servlet-name>

        <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>

        <init-param>

            <param-name>com.sun.jersey.config.property.packages</param-name>

            <param-value>com.huey.hello.jersey.service</param-value>

        </init-param>

        <load-on-startup>1</load-on-startup>

    </servlet>

    <servlet-mapping>

        <servlet-name>JerseyRESTService</servlet-name>

        <url-pattern>/rest/*</url-pattern>

    </servlet-mapping>

</web-app>

5. 部署启动 Web 工程。

6. 测试。

a) getBook

[huey@huey-K42JE ~]$ curl -i http://localhost:8080/hello-jersey/rest/books/9787115281487

HTTP/1.1 200 OK

Server: Apache-Coyote/1.1

Content-Type: application/json

Transfer-Encoding: chunked

Date: Mon, 11 Apr 2016 05:03:04 GMT

{"author":["David Gourley","Brian Totty"],"isbn":"9787115281487","price":"109.0","publisher":"人民邮电出版社","title":"HTTP权威指南"}

b) addBook

[huey@huey-K42JE ~]$ curl -i -H "Content-Type: application/json" -d '{"author":["Bruce Snyder","Dejan Bosanac"],"isbn":"9781933988948","price":"109.0","publisher":"Manning Publications","title":"ActiveMQ in Action"}' http://localhost:8080/hello-jersey/rest/books/

HTTP/1.1 204 No Content

Server: Apache-Coyote/1.1

Date: Mon, 11 Apr 2016 04:59:55 GMT

c) getBooks

[huey@huey-K42JE ~]$ curl -i -H "Accept: application/xml"  http://localhost:8080/hello-jersey/rest/books/

HTTP/1.1 200 OK

Server: Apache-Coyote/1.1

Content-Type: application/xml

Content-Length: 649

Date: Mon, 11 Apr 2016 05:07:15 GMT

<?xml version="1.0" encoding="UTF-8" standalone="yes"?><books><book><author>Baron Schwartz</author><author>Peter Zaitsev</author><isbn>9787121198854</isbn><price>128.0</price><publisher>电子业出版社</publisher><title>高性能MySQL</title></book><book><author>David Gourley</author><author>Brian Totty</author><isbn>9787115281487</isbn><price>109.0</price><publisher>人民邮电出版社</publisher><title>HTTP权威指南</title></book><book><author>Bruce Snyder</author><author>Dejan Bosanac</author><isbn>9781933988948</isbn><price>109.0</price><publisher>Manning Publications</publisher><title>ActiveMQ in Action</title></book></books>

巴特西

Jersey(1.19.1) - Hello World, Get started with a Web application

最新文章

热门文章