基于httpClient的HttpClientUtil工具类

来源：互联网发布：内网软件编辑：程序博客网时间：2024/05/16 06:39
httpClient 4.4版本以上，http请求封装，包括SSL证书的，直接上代码，jar包自己百度下，org.apache.httpClient 需要的包
import org.apache.http.HttpEntity;import org.apache.http.HttpResponse;import org.apache.http.NameValuePair;import org.apache.http.StatusLine;import org.apache.http.client.config.RequestConfig;import org.apache.http.client.entity.UrlEncodedFormEntity;import org.apache.http.client.methods.HttpGet;import org.apache.http.client.methods.HttpPost;import org.apache.http.conn.ssl.SSLConnectionSocketFactory;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.HttpClientBuilder;import org.apache.http.message.BasicNameValuePair;import org.apache.http.ssl.SSLContexts;import org.apache.http.util.EntityUtils;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import javax.net.ssl.SSLContext;import java.io.File;import java.io.FileInputStream;import java.io.IOException;import java.security.*;import java.security.cert.CertificateException;import java.util.ArrayList;import java.util.Iterator;import java.util.List;import java.util.Map;import java.util.Map.Entry;/** * 网络访问工具类 * * @author  sunshine * @since 2017年06月10日16:07:05 */public class HttpClientUtil {    private static Logger LOGGER = LoggerFactory.getLogger(HttpClientUtil.class);    //默认编码UTF8    private static String CHARSET = "UTF-8";    // 连接上一个url，获取response的返回等待时间    public static final int SOCKET_TIMEOUT = 20 * 1000;    // 连接一个url的连接等待时间    public static final int CONNECT_TIMEOUT = 10 * 1000;    /**     * post请求，并使用body传输数据     *     * @see org.apache.http.entity.ContentType     */    public static String doPost(String url, String body) {        return doPost(url, null, body, CHARSET, null);    }    /**     * post请求，并使用body传输数据     *     * @see org.apache.http.entity.ContentType     */    public static String doPost(String url, String mimeType, String body) {        return doPost(url, mimeType, body, CHARSET, null);    }    /**     * post请求，并使用body传输数据     *     * @see org.apache.http.entity.ContentType     */    public static String doPost(String url, String mimeType, String body, String charset, SSLContext sslcontext) {        String logId = "";        FileInputStream instream = null;        CloseableHttpClient httpClient = null;        try {            HttpClientBuilder builder = HttpClientBuilder.create();            //SSL 证书            if (sslcontext != null) {                SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sslcontext);                builder.setSSLSocketFactory(sslsf);            }            httpClient = builder.build();            HttpPost httpPost = new HttpPost(url);            RequestConfig requestConfig = RequestConfig.custom().setSocketTimeout(SOCKET_TIMEOUT).setConnectTimeout(CONNECT_TIMEOUT).build();            httpPost.setConfig(requestConfig);            ContentType contentType = ContentType.create(mimeType, charset);            StringEntity entity = new StringEntity(body, contentType);            entity.setContentType(mimeType);            httpPost.setEntity(entity);            HttpResponse response = httpClient.execute(httpPost);            if (response != null) {                //网络异常处理                StatusLine statusLine = response.getStatusLine();                if (statusLine.getStatusCode() != 200) {                    LOGGER.error(logId, "请求异常，POST >>>> url:{}", url);                    LOGGER.error(logId, "请求异常，POST <<<< [{}],[{}]", statusLine.getStatusCode(), statusLine.getReasonPhrase());                    return null;                }                HttpEntity resEntity = response.getEntity();                if (resEntity != null) {                    return EntityUtils.toString(resEntity, charset);                }            }            return null;        } catch (IOException | RuntimeException e) {            LOGGER.error(logId, "网络请求异常,url:{},charset:{},message:{}", url, charset, e.getMessage(), e);            return null;        } finally {            try {                if (instream != null) {                    instream.close();                }                if (httpClient != null) {                    httpClient.close();                }            } catch (IOException | RuntimeException e) {                LOGGER.error(logId, "关闭失败", e);            }        }    }    /**     * post请求     *     * @return String     *     * @since 1.0.0     */    public static String doPost(String url, Map<String, String> map, String charset) {        String logId = "";        CloseableHttpClient httpClient = null;        String result = null;        try {            HttpClientBuilder builder = HttpClientBuilder.create();            httpClient = builder.build();            HttpPost httpPost = new HttpPost(url);            RequestConfig requestConfig = RequestConfig.custom().setSocketTimeout(SOCKET_TIMEOUT).setConnectTimeout(CONNECT_TIMEOUT).build();            httpPost.setConfig(requestConfig);            // 设置参数            List<NameValuePair> list = new ArrayList<NameValuePair>();            Iterator<Entry<String, String>> iterator = map.entrySet().iterator();            while (iterator.hasNext()) {                Entry<String, String> elem = iterator.next();                list.add(new BasicNameValuePair(elem.getKey(), elem.getValue()));            }            if (list.size() > 0) {                UrlEncodedFormEntity entity = new UrlEncodedFormEntity(list, charset);                httpPost.setEntity(entity);            }            HttpResponse response = httpClient.execute(httpPost);            if (response != null) {                HttpEntity resEntity = response.getEntity();                if (resEntity != null) {                    result = EntityUtils.toString(resEntity, charset);                }            }        } catch (IOException | RuntimeException e) {            LOGGER.error(logId, "网络请求异常,url:{},charset:{},message:{}", url, charset, e.getMessage(), e);        } finally {            try {                if (httpClient != null) {                    httpClient.close();                }            } catch (IOException | RuntimeException e) {                LOGGER.error(logId, "关闭失败", e);            }        }        return result;    }    /**     * UTF8编码     *     * @return String     *     * @since 1.0.0     */    public static String doPost(String url, Map<String, String> map) {        return doPost(url, map, CHARSET);    }    /**     * Get请求     *     * @return String     *     * @since 1.0.0     */    public static String doGet(String url, String charset) {        String logId = "";        CloseableHttpClient httpClient = null;        String result = null;        try {            HttpClientBuilder builder = HttpClientBuilder.create();            httpClient = builder.build();            HttpGet httpGet = new HttpGet(url);            RequestConfig requestConfig = RequestConfig.custom()                    // 连接上一个url，获取response的返回等待时间                    .setSocketTimeout(SOCKET_TIMEOUT)                    // 连接一个url的连接等待时间                    .setConnectTimeout(CONNECT_TIMEOUT).build();            httpGet.setConfig(requestConfig);            HttpResponse response = httpClient.execute(httpGet);            if (response != null) {                HttpEntity resEntity = response.getEntity();                if (resEntity != null) {                    result = EntityUtils.toString(resEntity, charset);                }            }        } catch (IOException | RuntimeException e) {            LOGGER.error(logId, "网络请求异常,url:{},charset:{},message:{}", url, charset, e.getMessage(), e);        } finally {            try {                if (httpClient != null) {                    httpClient.close();                }            } catch (IOException | RuntimeException e) {                LOGGER.error(logId, "关闭失败", e);            }        }        return result;    }    public static String doGet(String url) {        return doGet(url, CHARSET);    }    public static SSLContext getPkcs12SSLContext(String certPath, char[] password) {        String logId = "SSLContext";        FileInputStream instream = null;        try {            //读取证书            LOGGER.info(logId, "读取SSL证书:{}", certPath);            instream = new FileInputStream(new File(certPath));            //加载证书            KeyStore keyStore = KeyStore.getInstance("PKCS12");            keyStore.load(instream, password);            SSLContext sslcontext = SSLContexts.custom().loadKeyMaterial(keyStore, password).build();            return sslcontext;        } catch (KeyStoreException | IOException | KeyManagementException | UnrecoverableKeyException | NoSuchAlgorithmException | CertificateException e) {            LOGGER.error(logId, "SSL证书加载失败,message:{}", e.getMessage(), e);        } finally {            try {                if (instream != null) {                    instream.close();                }            } catch (IOException e) {                LOGGER.error(logId, "流关闭失败");            }        }        return null;    }}
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