随着spring boot越来越来流行,restful风格的接口也成为新的接口规范,spring MVC项目调用restful接口的工具类

import com.sun.xml.internal.fastinfoset.Encoder;
import org.apache.http.client.methods.*;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;import java.io.IOException;
import java.net.URI;public class HttpUtils {/*** @param url eg:http://localohost:8080/web/user/1*            http://localohost:8080/web/user?id=1* @return*/public static String doGet(String url) {// 创建Httpclient对象CloseableHttpClient httpClient = HttpClients.createDefault();// 返回结果String result = null;// 执行url之后的响应CloseableHttpResponse response = null;try {// 创建uriURIBuilder builder = new URIBuilder(url);URI uri = builder.build();// 创建http GET请求HttpGet httpGet = new HttpGet(uri);// 执行请求response = httpClient.execute(httpGet);result = EntityUtils.toString(response.getEntity(), "UTF-8");} catch (Exception e) {e.printStackTrace();} finally {try {if (response != null) {response.close();}httpClient.close();} catch (IOException e) {e.printStackTrace();}}return result;}/*** @param url  eg:http://localohost:8080/web/user* @param json eg:{"name":"aa","id":"1","password":"123"}* @return*/public static String doPost(String url, String json) {// 创建Httpclient对象CloseableHttpClient httpClient = HttpClients.createDefault();CloseableHttpResponse response = null;String result = null;try {// 创建Http Post请求HttpPost httpPost = new HttpPost(url);// 创建请求内容StringEntity entity = new StringEntity(json, ContentType.APPLICATION_JSON);httpPost.setEntity(entity);// 执行http请求response = httpClient.execute(httpPost);result = EntityUtils.toString(response.getEntity(), Encoder.UTF_8);} catch (Exception e) {e.printStackTrace();} finally {try {if (response != null) {response.close();}httpClient.close();} catch (IOException e) {e.printStackTrace();}}return result;}/*** @param url  eg:http://localohost:8080/web/user* @param json eg:{"name":"AA","id":"1"}* @return*/public static String doPut(String url, String json) {// 创建Httpclient对象CloseableHttpClient httpClient = HttpClients.createDefault();CloseableHttpResponse response = null;String result = null;try {// 创建Http Post请求HttpPut httpPut = new HttpPut(url);// 创建请求内容StringEntity entity = new StringEntity(json, ContentType.APPLICATION_JSON);httpPut.setEntity(entity);// 执行http请求response = httpClient.execute(httpPut);result = EntityUtils.toString(response.getEntity(), Encoder.UTF_8);} catch (Exception e) {e.printStackTrace();} finally {try {if (response != null) {response.close();}httpClient.close();} catch (IOException e) {e.printStackTrace();}}return result;}/*** @param url eg:http://localohost:8080/web/user/1*            http://localohost:8080/web/user?id=1*            http://localohost:8080/web/user?id=1,2,3* @return*/public static String doDelete(String url) {// 创建Httpclient对象CloseableHttpClient httpClient = HttpClients.createDefault();CloseableHttpResponse response = null;String result = null;try {// 创建Http Post请求HttpDelete httpDelete = new HttpDelete(url);// 执行http请求response = httpClient.execute(httpDelete);result = EntityUtils.toString(response.getEntity(), Encoder.UTF_8);} catch (Exception e) {e.printStackTrace();} finally {try {if (response != null) {response.close();}httpClient.close();} catch (IOException e) {e.printStackTrace();}}return result;}
}

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HttpClients调用restful接口get,post,put,delete接口工具类

随着spring boot越来越来流行,restful风格的接口也成为新的接口规范,spring MVC项目调用restful接口的工具类

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