import java.io.IOException;import java.io.UnsupportedEncodingException;import java.net.URISyntaxException;import java.util.ArrayList;import java.util.Map;import org.apache.commons.logging.Log;import org.apache.commons.logging.LogFactory;import org.apache.http.HttpEntity;import org.apache.http.NameValuePair;import org.apache.http.client.ClientProtocolException;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.client.utils.URIBuilder;import org.apache.http.entity.StringEntity;import org.apache.http.impl.client.CloseableHttpClient;import org.apache.http.impl.client.HttpClients;import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;import org.apache.http.message.BasicNameValuePair;import org.apache.http.util.EntityUtils;import com.pingan.qhcs.map.audit.constant.CodeConstant;import com.pingan.qhcs.map.audit.exception.MapException;public class HttpClientUtil {protected static Log logger = LogFactory.getLog(HttpClientUtil.class); private static PoolingHttpClientConnectionManager cm;private static String EMPTY_STR = "";private static String UTF_8 = "UTF-8";private static void init() {if (cm == null) { cm = new PoolingHttpClientConnectionManager(); cm.setMaxTotal(50);// 整个连接池最大连接数cm.setDefaultMaxPerRoute(5);// 每路由最大连接数，默认值是2 } }/** * 通过连接池获取HttpClient * * @return */public static CloseableHttpClient getHttpClient() { init();return HttpClients.custom().setConnectionManager(cm).build(); }public static String httpGetRequest(String url) { HttpGet httpGet = new HttpGet(url);return getResult(httpGet); }public static String httpGetRequest(String url, Map<String, Object> params) throws URISyntaxException { URIBuilder ub = new URIBuilder(); ub.setPath(url); ArrayList<NameValuePair> pairs = covertParams2NVPS(params); ub.setParameters(pairs); HttpGet httpGet = new HttpGet(ub.build()); return getResult(httpGet); }public static String httpGetRequest(String url, Map<String, Object> headers, Map<String, Object> params)throws URISyntaxException { URIBuilder ub = new URIBuilder(); ub.setPath(url); ArrayList<NameValuePair> pairs = covertParams2NVPS(params); ub.setParameters(pairs); HttpGet httpGet = new HttpGet(ub.build());for (Map.Entry<String, Object> param : headers.entrySet()) { httpGet.addHeader(param.getKey(), String.valueOf(param.getValue())); }return getResult(httpGet); }public static String httpPostRequest(String url) { HttpPost httpPost = new HttpPost(url);return getResult(httpPost); }public static String httpPostRequest(String url, Map<String, Object> params) throws UnsupportedEncodingException { HttpPost httpPost = new HttpPost(url); ArrayList<NameValuePair> pairs = covertParams2NVPS(params); httpPost.setEntity(new UrlEncodedFormEntity(pairs, UTF_8));return getResult(httpPost); }public static String httpPostRequest(String url, Map<String, Object> headers, Map<String, Object> params)throws UnsupportedEncodingException { HttpPost httpPost = new HttpPost(url);for (Map.Entry<String, Object> param : headers.entrySet()) { httpPost.addHeader(param.getKey(), String.valueOf(param.getValue())); } ArrayList<NameValuePair> pairs = covertParams2NVPS(params); httpPost.setEntity(new UrlEncodedFormEntity(pairs, UTF_8));return getResult(httpPost); }public static String httpPostRequest(String url, Map<String, Object> headers, String strBody)throws Exception { HttpPost httpPost = new HttpPost(url);for (Map.Entry<String, Object> param : headers.entrySet()) { httpPost.addHeader(param.getKey(), String.valueOf(param.getValue())); } httpPost.setEntity(new StringEntity(strBody, UTF_8));return getResult(httpPost); } private static ArrayList<NameValuePair> covertParams2NVPS(Map<String, Object> params) { ArrayList<NameValuePair> pairs = new ArrayList<NameValuePair>();for (Map.Entry<String, Object> param : params.entrySet()) { pairs.add(new BasicNameValuePair(param.getKey(), String.valueOf(param.getValue()))); }return pairs; }/** * 处理Http请求 * * setConnectTimeout：设置连接超时时间，单位毫秒。 * setConnectionRequestTimeout：设置从connect Manager获取Connection 超时时间，单位毫秒。这个属性是新加的属性，因为目前版本是可以共享连接池的。 * setSocketTimeout：请求获取数据的超时时间，单位毫秒。 如果访问一个接口，多少时间内无法返回数据，就直接放弃此次调用。 * * @param request * @return */private static String getResult(HttpRequestBase request) { RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(60000) .setConnectionRequestTimeout(5000).setSocketTimeout(60000).build(); request.setConfig(requestConfig);// 设置请求和传输超时时间// CloseableHttpClient httpClient = HttpClients.createDefault();CloseableHttpClient httpClient = getHttpClient();try { CloseableHttpResponse response = httpClient.execute(request); //执行请求// response.getStatusLine().getStatusCode();HttpEntity entity = response.getEntity();if (entity != null) {// long len = entity.getContentLength();// -1 表示长度未知String result = EntityUtils.toString(entity); response.close();// httpClient.close();return result; } } catch (ClientProtocolException e) { logger.error("[maperror] HttpClientUtil ClientProtocolException : " + e.getMessage());throw new MapException(CodeConstant.CODE_CONNECT_FAIL, "HttpClientUtil ClientProtocolException ：" + e.getMessage()); } catch (IOException e) { logger.error("[maperror] HttpClientUtil IOException : " + e.getMessage());throw new MapException(CodeConstant.CODE_CONNECT_FAIL, "HttpClientUtil IOException ：" + e.getMessage()); } finally { }return EMPTY_STR; }}
以上就是HttpUtils请求工具类的代码的详细内容，更多请关注其它相关文章！
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