基于Restful接口调用方法总结(超详细)
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2023-12-22 20:04:58
由于在实际项目中碰到的restful服务,参数都以json为准。这里我获取的接口和传入的参数都是json字符串类型。发布restful服务可参照文章 jersey实现res...
由于在实际项目中碰到的restful服务,参数都以json为准。这里我获取的接口和传入的参数都是json字符串类型。发布restful服务可参照文章 jersey实现restful服务(实例讲解),以下接口调用基于此服务。
基于发布的restful服务,下面总结几种常用的调用方法。
(1)jersey api
package com.restful.client; import com.fasterxml.jackson.core.jsonprocessingexception; import com.fasterxml.jackson.databind.objectmapper; import com.restful.entity.personentity; import com.sun.jersey.api.client.client; import com.sun.jersey.api.client.clientresponse; import com.sun.jersey.api.client.webresource; import javax.ws.rs.core.mediatype; /** * created by xuhui on 2017/8/7. */ public class jerseyclient { private static string rest_api = "http://localhost:8080/jerseydemo/rest/jerseyservice"; public static void main(string[] args) throws exception { getrandomresource(); addresource(); getallresource(); } public static void getrandomresource() { client client = client.create(); webresource webresource = client.resource(rest_api + "/getrandomresource"); clientresponse response = webresource.type(mediatype.application_json).accept("application/json").get(clientresponse.class); string str = response.getentity(string.class); system.out.print("getrandomresource result is : " + str + "\n"); } public static void addresource() throws jsonprocessingexception { client client = client.create(); webresource webresource = client.resource(rest_api + "/addresource/person"); objectmapper mapper = new objectmapper(); personentity entity = new personentity("no2", "joker", "http://"); clientresponse response = webresource.type(mediatype.application_json).accept(mediatype.application_json).post(clientresponse.class, mapper.writevalueasstring(entity)); system.out.print("addresource result is : " + response.getentity(string.class) + "\n"); } public static void getallresource() { client client = client.create(); webresource webresource = client.resource(rest_api + "/getallresource"); clientresponse response = webresource.type(mediatype.application_json).accept("application/json").get(clientresponse.class); string str = response.getentity(string.class); system.out.print("getallresource result is : " + str + "\n"); } }
结果:
getrandomresource result is : {"id":"no1","name":"joker","addr":"http:///"} addresource result is : {"id":"no2","name":"joker","addr":"http://"} getallresource result is : [{"id":"no2","name":"joker","addr":"http://"}]
(2)httpurlconnection
package com.restful.client; import com.fasterxml.jackson.databind.objectmapper; import com.restful.entity.personentity; import java.io.bufferedreader; import java.io.inputstreamreader; import java.io.outputstream; import java.net.httpurlconnection; import java.net.url; /** * created by xuhui on 2017/8/7. */ public class httpurlclient { private static string rest_api = "http://localhost:8080/jerseydemo/rest/jerseyservice"; public static void main(string[] args) throws exception { addresource(); getallresource(); } public static void addresource() throws exception { objectmapper mapper = new objectmapper(); url url = new url(rest_api + "/addresource/person"); httpurlconnection httpurlconnection = (httpurlconnection) url.openconnection(); httpurlconnection.setdooutput(true); httpurlconnection.setrequestmethod("post"); httpurlconnection.setrequestproperty("accept", "application/json"); httpurlconnection.setrequestproperty("content-type", "application/json"); personentity entity = new personentity("no2", "joker", "http://"); outputstream outputstream = httpurlconnection.getoutputstream(); outputstream.write(mapper.writevalueasbytes(entity)); outputstream.flush(); bufferedreader reader = new bufferedreader(new inputstreamreader(httpurlconnection.getinputstream())); string output; system.out.print("addresource result is : "); while ((output = reader.readline()) != null) { system.out.print(output); } system.out.print("\n"); } public static void getallresource() throws exception { url url = new url(rest_api + "/getallresource"); httpurlconnection httpurlconnection = (httpurlconnection) url.openconnection(); httpurlconnection.setrequestmethod("get"); httpurlconnection.setrequestproperty("accept", "application/json"); bufferedreader reader = new bufferedreader(new inputstreamreader(httpurlconnection.getinputstream())); string output; system.out.print("getallresource result is :"); while ((output = reader.readline()) != null) { system.out.print(output); } system.out.print("\n"); } }
结果:
addresource result is : {"id":"no2","name":"joker","addr":"http://"} getallresource result is :[{"id":"no2","name":"joker","addr":"http://"}]
(3)httpclient
package com.restful.client; import com.fasterxml.jackson.databind.objectmapper; import com.restful.entity.personentity; import org.apache.http.httpresponse; import org.apache.http.client.httpclient; import org.apache.http.client.methods.httpget; import org.apache.http.client.methods.httppost; import org.apache.http.entity.stringentity; import org.apache.http.impl.client.defaulthttpclient; import org.apache.http.util.entityutils; /** * created by xuhui on 2017/8/7. */ public class restfulhttpclient { private static string rest_api = "http://localhost:8080/jerseydemo/rest/jerseyservice"; public static void main(string[] args) throws exception { addresource(); getallresource(); } public static void addresource() throws exception { httpclient httpclient = new defaulthttpclient(); personentity entity = new personentity("no2", "joker", "http://"); objectmapper mapper = new objectmapper(); httppost request = new httppost(rest_api + "/addresource/person"); request.setheader("content-type", "application/json"); request.setheader("accept", "application/json"); stringentity requestjson = new stringentity(mapper.writevalueasstring(entity), "utf-8"); requestjson.setcontenttype("application/json"); request.setentity(requestjson); httpresponse response = httpclient.execute(request); string json = entityutils.tostring(response.getentity()); system.out.print("addresource result is : " + json + "\n"); } public static void getallresource() throws exception { httpclient httpclient = new defaulthttpclient(); httpget request = new httpget(rest_api + "/getallresource"); request.setheader("content-type", "application/json"); request.setheader("accept", "application/json"); httpresponse response = httpclient.execute(request); string json = entityutils.tostring(response.getentity()); system.out.print("getallresource result is : " + json + "\n"); } }
结果:
addresource result is : {"id":"no2","name":"joker","addr":"http://"} getallresource result is : [{"id":"no2","name":"joker","addr":"http://"}]
maven:
<dependency> <groupid>org.apache.httpcomponents</groupid> <artifactid>httpclient</artifactid> <version>4.1.2</version> </dependency>
(4)jax-rs api
package com.restful.client; import com.restful.entity.personentity; import javax.ws.rs.client.client; import javax.ws.rs.client.clientbuilder; import javax.ws.rs.client.entity; import javax.ws.rs.core.mediatype; import javax.ws.rs.core.response; import java.io.ioexception; /** * created by xuhui on 2017/7/27. */ public class restfulclient { private static string rest_api = "http://localhost:8080/jerseydemo/rest/jerseyservice"; public static void main(string[] args) throws exception { getrandomresource(); addresource(); getallresource(); } public static void getrandomresource() throws ioexception { client client = clientbuilder.newclient(); client.property("content-type","xml"); response response = client.target(rest_api + "/getrandomresource").request().get(); string str = response.readentity(string.class); system.out.print("getrandomresource result is : " + str + "\n"); } public static void addresource() { client client = clientbuilder.newclient(); personentity entity = new personentity("no2", "joker", "http://"); response response = client.target(rest_api + "/addresource/person").request().buildpost(entity.entity(entity, mediatype.application_json)).invoke(); string str = response.readentity(string.class); system.out.print("addresource result is : " + str + "\n"); } public static void getallresource() throws ioexception { client client = clientbuilder.newclient(); client.property("content-type","xml"); response response = client.target(rest_api + "/getallresource").request().get(); string str = response.readentity(string.class); system.out.print("getallresource result is : " + str + "\n"); } }
结果:
getrandomresource result is : {"id":"no1","name":"joker","addr":"http:///"} addresource result is : {"id":"no2","name":"joker","addr":"http://"} getallresource result is : [{"id":"no2","name":"joker","addr":"http://"}]
(5)webclient
package com.restful.client; import com.fasterxml.jackson.databind.objectmapper; import com.restful.entity.personentity; import org.apache.cxf.jaxrs.client.webclient; import javax.ws.rs.core.response; /** * created by xuhui on 2017/8/7. */ public class restfulwebclient { private static string rest_api = "http://localhost:8080/jerseydemo/rest/jerseyservice"; public static void main(string[] args) throws exception { addresource(); getallresource(); } public static void addresource() throws exception { objectmapper mapper = new objectmapper(); webclient client = webclient.create(rest_api) .header("content-type", "application/json") .header("accept", "application/json") .encoding("utf-8") .acceptencoding("utf-8"); personentity entity = new personentity("no2", "joker", "http://"); response response = client.path("/addresource/person").post(mapper.writevalueasstring(entity), response.class); string json = response.readentity(string.class); system.out.print("addresource result is : " + json + "\n"); } public static void getallresource() { webclient client = webclient.create(rest_api) .header("content-type", "application/json") .header("accept", "application/json") .encoding("utf-8") .acceptencoding("utf-8"); response response = client.path("/getallresource").get(); string json = response.readentity(string.class); system.out.print("getallresource result is : " + json + "\n"); } }
结果:
addresource result is : {"id":"no2","name":"joker","addr":"http://"} getallresource result is : [{"id":"no2","name":"joker","addr":"http://"}
maven:
<dependency> <groupid>org.apache.cxf</groupid> <artifactid>cxf-bundle-jaxrs</artifactid> <version>2.7.0</version> </dependency>
注:该jar包引入和jersey包引入有冲突,不能在一个工程中同时引用。
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