导出mven依赖
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.5.6</version>
</dependency>
package testhttpclient.testhttpclient; import java.io.IOException; import java.io.UnsupportedEncodingException; import java.util.ArrayList; import java.util.HashMap; import java.util.HashSet; import java.util.List; import java.util.Map; import java.util.Set; import org.apache.http.Header; import org.apache.http.HttpEntity; import org.apache.http.HttpHost; import org.apache.http.HttpRequest; import org.apache.http.HttpResponse; import org.apache.http.HttpStatus; import org.apache.http.NameValuePair; import org.apache.http.ParseException; import org.apache.http.client.ClientProtocolException; import org.apache.http.client.HttpClient; import org.apache.http.client.config.RequestConfig; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.client.methods.CloseableHttpResponse; import org.apache.http.client.methods.HttpGet; import org.apache.http.client.methods.HttpPost; import org.apache.http.client.methods.HttpRequestBase; import org.apache.http.impl.client.BasicCookieStore; import org.apache.http.impl.client.CloseableHttpClient; import org.apache.http.impl.client.HttpClients; import org.apache.http.message.BasicNameValuePair; import org.apache.http.util.EntityUtils; public class HttpClientComm { /** * 客户端总成 */ protected CloseableHttpClient httpclient; /** * cookie信息 */ protected Set<String>cookies; /** * get方法 */ protected HttpGet httpget; /** * post方法 */ protected HttpPost httppost; /** * 代理 */ protected HttpHost proxy; /** * 设置默认延迟时间 */ protected RequestConfig requestconfig; /** * 返回存储数据map */ protected Map<String,String>resultmap; /** * 响应状态 */ public final String HTTPSTATUS="status"; /** * 返回数据结果 */ public final String HTTPRESULT="httpresult"; /** * 初始化客户端 */ public HttpClientComm() { httpclient=HttpClients.createDefault(); requestconfig=RequestConfig.custom().setConnectionRequestTimeout(10*1000).setSocketTimeout(10*1000).build(); cookies=new HashSet<String>(16); } /** * 初始化请求，设置请求时间 * @param millistimeout */ public HttpClientComm(int millistimeout) { httpclient=HttpClients.createDefault(); requestconfig=RequestConfig.custom().setConnectionRequestTimeout(10*1000).setSocketTimeout(10*1000).build(); cookies=new HashSet<String>(16); } /** * 设置代理 * * @Data:上午11:02:43 * @Package:testhttpclient.testhttpclient * @Return:void * @Auth:diao */ public void setProxy(String Address,int port) { proxy=new HttpHost(Address, port); requestconfig=RequestConfig.custom().setProxy(proxy).build(); } /** * 释放请求资源 * * @Data:上午11:03:27 * @Package:testhttpclient.testhttpclient * @Return:void * @Auth:diao */ public void close() { if(cookies!=null) { cookies=null; } if(proxy!=null) { proxy=null; } if(resultmap!=null) { resultmap=null; } if(httpget!=null) { httpget.releaseConnection(); } if(httppost!=null) { httppost.releaseConnection(); } if(httpclient!=null) { try { httpclient.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }finally { httpclient=null; } } } /** * * get请求传递的连接，请求头 * @Data:上午11:15:10 * @Package:testhttpclient.testhttpclient * @Return:Map<String,String> * @Auth:diao */ public Map<String,String>get(String url,Map<String,String>headers){ httpget=new HttpGet(url); httpget.setConfig(requestconfig); headers.forEach((a,b)->{ httpget.addHeader(a, b); }); httpget.addHeader("cookie",cookies.toString().substring(1,cookies.toString().length()-1)); CloseableHttpResponse respose=null; try { respose=httpclient.execute(httpget); } catch (ClientProtocolException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } return getResData(respose, httpget); } /** * post请求方式 * * @Data:下午2:01:15 * @Package:testhttpclient.testhttpclient * @Return:Map<String,String> * @Auth:diao */ public Map<String,String>post(String url,Map<String,String>headers,Map<String,String>params,String charset) throws UnsupportedEncodingException { //设置请求方法及连接信息 httppost=new HttpPost(url); //设置请求参数 httppost.setConfig(requestconfig); //设置请求头 headers.forEach((a,b)->{ httpget.addHeader(a, b); }); BasicCookieStore cookie=new BasicCookieStore(); HttpClients.custom().setDefaultCookieStore(cookie).build(); httppost.addHeader("cookie",cookies.toString().substring(1,cookies.toString().length()-1)); List<NameValuePair>pairs=null; if(params!=null&&!params.isEmpty()) { pairs=new ArrayList<NameValuePair>(params.size()); for(String key:params.keySet()) { pairs.add(new BasicNameValuePair(key,params.get(key).toString())); } } if(pairs!=null&&pairs.size()>0) { httppost.setEntity(new UrlEncodedFormEntity(pairs,charset)); } //执行请求 HttpResponse response=null; try { response=httpclient.execute(httppost); } catch (ClientProtocolException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } return getResData(response, httppost); } /** * 处理http结果请求 * * @Data:下午1:42:28 * @Package:testhttpclient.testhttpclient * @Return:Map<String,String> * @Auth:diao */ public Map<String,String> getResData(HttpResponse response,HttpRequestBase requestbase) { int status=405; if(response!=null) { status=response.getStatusLine().getStatusCode(); for(Header header:response.getAllHeaders()) { if("Set-Cookie".equalsIgnoreCase(header.getName())) { cookies.add(header.getValue()); } } } resultmap=new HashMap<>(16); resultmap.put(HTTPRESULT,status+""); resultmap.put(HTTPRESULT, null); if(status!=HttpStatusEnum.OK.code()) { requestbase.abort(); }else { HttpEntity entity= response.getEntity(); if(entity!=null) { try { String data=EntityUtils.toString(entity,"utf-8"); String start="[",end="]"; if(data.startsWith(start)) { data=data.substring(1); } if(data.endsWith(end)) { data=data.substring(0,data.length()-1); } data=data.replaceAll("\\\\t|\\\\n|\\r\\n",""); data=data.replaceAll("\\\\/","/"); data=decodeUnicode(data); resultmap.put(HTTPRESULT, data); //关闭流 EntityUtils.consume(entity); } catch (ParseException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } response=null; } } return resultmap; } /** * unicode转中文 * * @Data:下午1:44:16 * @Package:testhttpclient.testhttpclient * @Return:String * @Auth:diao */ public static String decodeUnicode(final String dataStr) { int start = 0; int end = 0; final StringBuffer buffer = new StringBuffer(); while (start > -1) { end = dataStr.indexOf("\\u", start + 2); String charStr = ""; if (end == -1) { charStr = dataStr.substring(start + 2, dataStr.length()); } else { charStr = dataStr.substring(start + 2, end); } // 16进制parse整形字符串。 char letter = (char) Integer.parseInt(charStr, 16); buffer.append(new Character(letter).toString()); start = end; } return buffer.toString(); } /** * 获取请求头 * * @Data:下午1:44:16 * @Package:testhttpclient.testhttpclient * @Return:String * @Auth:diao */ public Map<String,String>getCommHeader(){ Map<String,String>headers=new HashMap<String, String>(16); headers.put("User-Agent","Mozilla/5.0(Window NT 6.1; WOW64; rv:58.0) Gecko/20100101 Firfox/58.0"); headers.put("Accept","application/json,text/plain,*/*"); headers.put("Accept-Language","zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2"); headers.put("Accept-Encoding","gzip,deflate"); headers.put("Connection","keep-alive"); return headers; } public void test(String ip,int port,String jobid) { String url=String.format("http://%s:%d/jobs/%s/yarn-cancel",ip,port,jobid); HttpClientComm httpclient=new HttpClientComm(); Map<String,String>header=new HashMap<String, String>(16); header.put("Host",ip+":"+port); header.put("Referer","http://"+ip+":"+port); Map<String,String>Resultmap=httpclient.get(url, header); String httpstatus=Resultmap.get(httpclient.HTTPSTATUS); String resultmap=Resultmap.get(httpclient.HTTPRESULT); if(httpstatus.isEmpty()&&HttpStatusEnum.ACCEPTED.code()==Integer.parseInt(httpstatus)) { //json解析 } } }
所有状态枚举类
package testhttpclient.testhttpclient; /** * * @author sdzw * */ public enum HttpStatusEnum { /** * 请继续发送请求的剩余部分 */ CONTINUE(100, "Continue", "请继续发送请求的剩余部分"), SWITCHING_PROTOCOLS(101, "Switching Protocols", "协议切换"), PROCESSING(102, "Processing", "请求将继续执行"), // for 103 https://news.ycombinator.com/item?id=15590049 CHECKPOINT(103, "Checkpoint", "可以预加载"), OK(200, "OK", "请求已经成功处理"), CREATED(201, "Created", "请求已经成功处理，并创建了资源"), ACCEPTED(202, "Accepted", "请求已经接受，等待执行"), NON_AUTHORITATIVE_INFORMATION(203, "Non-Authoritative Information", "请求已经成功处理，但是信息不是原始的"), NO_CONTENT(204, "No Content", "请求已经成功处理，没有内容需要返回"), RESET_CONTENT(205, "Reset Content", "请求已经成功处理，请重置视图"), PARTIAL_CONTENT(206, "Partial Content", "部分Get请求已经成功处理"), MULTI_STATUS(207, "Multi-Status", "请求已经成功处理，将返回XML消息体"), ALREADY_REPORTED(208, "Already Reported", "请求已经成功处理，一个DAV的绑定成员被前一个请求枚举，并且没有被再一次包括"), IM_USED(226, "IM Used", "请求已经成功处理，将响应一个或者多个实例"), MULTIPLE_CHOICES(300, "Multiple Choices", "提供可供选择的回馈"), MOVED_PERMANENTLY(301, "Moved Permanently", "请求的资源已经永久转移"), FOUND(302, "Found", "请重新发送请求"), // MOVED_TEMPORARILY(302, "Moved Temporarily", "") 已经过时 SEE_OTHER(303, "See Other", "请以Get方式请求另一个URI"), NOT_MODIFIED(304, "Not Modified", "资源未改变"), USE_PROXY(305, "Use Proxy", "请通过Location域中的代理进行访问"), // 306在新版本的规范中被弃用 TEMPORARY_REDIRECT(307, "Temporary Redirect", "请求的资源临时从不同的URI响应请求"), RESUME_INCOMPLETE(308, "Resume Incomplete", "请求的资源已经永久转移"), BAD_REQUEST(400, "Bad Request", "请求错误，请修正请求"), UNAUTHORIZED(401, "Unauthorized", "没有被授权或者授权已经失效"), PAYMENT_REQUIRED(402, "Payment Required", "预留状态"), FORBIDDEN(403, "Forbidden", "请求被理解，但是拒绝执行"), NOT_FOUND(404, "Not Found", "资源未找到"), METHOD_NOT_ALLOWED(405, "Method Not Allowed", "请求方法不允许被执行"), NOT_ACCEPTABLE(406, "Not Acceptable", "请求的资源不满足请求者要求"), PROXY_AUTHENTICATION_REQUIRED(407, "Proxy Authentication Required", "请通过代理进行身份验证"), REQUEST_TIMEOUT(408, "Request Timeout", "请求超时"), CONFLICT(409, "Conflict", "请求冲突"), GONE(410, "Gone", "请求的资源不可用"), LENGTH_REQUIRED(411, "Length Required", "Content-Length未定义"), PRECONDITION_FAILED(412, "Precondition Failed", "不满足请求的先决条件"), REQUEST_ENTITY_TOO_LARGE(413, "Request Entity Too Large", "请求发送的实体太大"), REQUEST_URI_TOO_LONG(414, "Request-URI Too Long", "请求的URI超长"), UNSUPPORTED_MEDIA_TYPE(415, "Unsupported Media Type", "请求发送的实体类型不受支持"), REQUESTED_RANGE_NOT_SATISFIABLE(416, "Requested range not satisfiable", "Range指定的范围与当前资源可用范围不一致"), EXPECTATION_FAILED(417, "Expectation Failed", "请求头Expect中指定的预期内容无法被服务器满足"), LOCKED(423, "Locked", "当前资源被锁定"), FAILED_DEPENDENCY(424, "Failed Dependency", "由于之前的请求发生错误，导致当前请求失败"), UPGRADE_REQUIRED(426, "Upgrade Required", "客户端需要切换到TLS1.0"), PRECONDITION_REQUIRED(428, "Precondition Required", "请求需要提供前置条件"), TOO_MANY_REQUESTS(429, "Too Many Requests", "请求过多"), REQUEST_HEADER_FIELDS_TOO_LARGE(431, "Request Header Fields Too Large", "请求头超大，拒绝请求"), INTERNAL_SERVER_ERROR(500, "Internal Server Error", "服务器内部错误"), NOT_IMPLEMENTED(501, "Not Implemented", "服务器不支持当前请求的部分功能"), BAD_GATEWAY(502, "Bad Gateway", "响应无效"), SERVICE_UNAVAILABLE(503, "Service Unavailable", "服务器维护或者过载，拒绝服务"), GATEWAY_TIMEOUT(504, "Gateway Timeout", "上游服务器超时"), HTTP_VERSION_NOT_SUPPORTED(505, "HTTP Version not supported", "不支持的HTTP版本"), VARIANT_ALSO_NEGOTIATES(506, "Variant Also Negotiates", "服务器内部配置错误"), INSUFFICIENT_STORAGE(507, "Insufficient Storage", "服务器无法完成存储请求所需的内容"), LOOP_DETECTED(508, "Loop Detected", "服务器处理请求时发现死循环"), BANDWIDTH_LIMIT_EXCEEDED(509, "Bandwidth Limit Exceeded", "服务器达到带宽限制"), NOT_EXTENDED(510, "Not Extended", "获取资源所需的策略没有被满足"), NETWORK_AUTHENTICATION_REQUIRED(511, "Network Authentication Required", "需要进行网络授权"); /** * 状态码 */ private final int code; /** * 中文含义 */ private final String reasonPhraseUS; /** * 英文含义 */ private final String reasonPhraseCN; /** * 某个数字代表的错误类型 */ private static final int INFORMATIONAL = 1, SUCCESSFUL = 2, REDIRECTION = 3, CLIENT_ERROR = 4, SERVER_ERROR = 5; HttpStatusEnum(int code, String reasonPhraseUS, String reasonPhraseCN) { this.code = code; this.reasonPhraseUS = reasonPhraseUS; this.reasonPhraseCN = reasonPhraseCN; } public int code() { return code; } public String reasonPhraseUS() { return reasonPhraseUS; } public String reasonPhraseCN() { return reasonPhraseCN; } public static HttpStatusEnum valueOf(int code) { for (HttpStatusEnum httpStatus : values()) { if (httpStatus.code() == code) { return httpStatus; } } throw new IllegalArgumentException("No matching constant for [" + code + "]"); } public boolean is1xxInformational() { return type() == INFORMATIONAL; } public boolean is2xxSuccessful() { return type() == SUCCESSFUL; } public boolean is3xxRedirection() { return type() == REDIRECTION; } public boolean is4xxClientError() { return type() == CLIENT_ERROR; } public boolean is5xxServerError() { return type() == SERVER_ERROR; } private int type() { return (int) code / 100; } }