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本文來自于oschina，本文主要介紹了一個在 spring boot 項目添加Jeresy框架的詳細過程，希望對大家能有所幫助。
Jeresy是一個輕量級的JAX-RS框架
添加Jeresy 2.x的依賴
compile group: 'org.glassfish.jersey.core', name: 'jersey-client', version: '2.26'
compile group: 'org.glassfish.jersey.containers', name: 'jersey-container-servlet', version: '2.26'
compile group: 'org.glassfish.jersey.media', name: 'jersey-media-json-jackson', version: '2.26'
build.gradle文件內容:
buildscript {
ext {
springBootVersion = '1.5.8.RELEASE'
}
repositories {
mavenLocal()
maven{ url "http://SVN:8081/nexus/content/groups/public"}
mavenCentral()
jcenter()
}
dependencies {
classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
}
}
Apply plugin: 'JAVA'
apply plugin: 'eclipse'
apply plugin: 'org.springframework.boot'
group = 'com.example'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = 1.8
[compileJava, compileTestJava]*.options*.encoding = 'UTF-8'
repositories {
mavenLocal()
maven{ url "http://SVN:8081/nexus/content/groups/public"}
mavenCentral()
jcenter()
}
dependencies {
compile('org.springframework.boot:spring-boot-configuration-processor')
compile('org.springframework.boot:spring-boot-starter-web')
compile group: 'org.glassfish.jersey.core', name: 'jersey-client', version: '2.26'
compile group: 'org.glassfish.jersey.containers', name: 'jersey-container-servlet', version: '2.26'
compile group: 'org.glassfish.jersey.media', name: 'jersey-media-json-jackson', version: '2.26'
testCompile('org.springframework.boot:spring-boot-starter-test')
}
創建一個 spring boot 項目
在IDE里一路next
Spring Boot啟動APP
package com.example.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure
.SpringBootApplication;
@SpringBootApplication // @wjw 是Sprnig Boot項目的核心注解,主要目的是開啟自動配置.
public class JerseyApplication {
public static void main(String[] args) {
SpringApplication.run(JerseyApplication.class, args);
}
}
注冊jersey servlet
這和原來在 web.xml 配置的是一樣的,設置 Mapping,設置 init 初始化參數,對應的 servlet class name .
所有的rest/*請求都將被 ServletContainer jersey servlet 容器接管.
package com.example.demo;
import org.glassfish.jersey.servlet.ServletContainer;
import org.glassfish.jersey.servlet.ServletProperties;
import org.springframework.boot.web.servlet.
ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.
Configuration;
@Configuration
public class ConfigBean {
@Bean
public ServletRegistrationBean jerseyServlet() {
//手動注冊servlet
ServletRegistrationBean registrationBean = new
ServletRegistrationBean(new ServletContainer(),
"/rest/*");
registrationBean.addInitParameter
(ServletProperties.JAXRS_APPLICATION_CLASS
,JerseyResourceConfig.class.getName());
return registrationBean;
}
}
創建jersey Resources
packages方式是采用掃描包的方式批量注冊
register 是單個注冊
package com.example.demo;
import org.glassfish.jersey.server.ResourceConfig;
import org.springframework.web.filter
.RequestContextFilter;
public class JerseyResourceConfig extends ResourceConfig
{
public JerseyResourceConfig() {
/*
* Servlet Filter that exposes the request to
the current thread, through both org.springframework.context.i18n.LocaleContextHolder
and RequestContextHolder. To be registered as
filter in web.xml.<br/>
Alternatively, Spring's org.springframework.web.context
.request.RequestContextListener and Spring's org.springframework.web.servlet.DispatcherServlet
also expose the same request context to the
current thread.<br/>
This filter is mainly for use with third-party
servlets, e.g. the JSF FacesServlet. Within
Spring's own web support, DispatcherServlet's
processing is perfectly sufficient.<br/>
*/
register(RequestContextFilter.class);
// 加載資源文件,這里直接掃描com.example.
demo.controller下的所有api
packages("com.example.demo.controller");
//register(HelloController.class);
//@wjw_note: 這種是注冊單個的 JAX-RS component!
}
}
創建jersey Controller,使用 JAX-RS 規范的注解進行設置即可
package com.example.demo.controller;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import com.example.demo.User;
@Path("/user/")
public class HelloController {
@Path("{id}")
@GET
@Produces(MediaType.APPLICATION_JSON)
public User hello(@PathParam("id") Long id) {
User user = new User();
user.setID(id);
user.setUserName("mvc.");
return user;
}
}
啟動Spring Boot程序
默認端口號是:8080
在瀏覽器里測試
輸入
:http://127.0.0.1:8080/rest//user/123678
返回: {"userName": "mvc.","id": 123678}
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