http請求資料封裝

標籤：method   tco   public   ring   factory   get   catch   map   nal   

package com.wdm.utils;import java.io.ByteArrayOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.net.HttpURLConnection;import java.net.URL;import java.util.Map;import org.slf4j.Logger;import org.slf4j.LoggerFactory;public class HttpClientUtils {    private static Logger LOGGER = LoggerFactory.getLogger(HttpClientUtils.class);    private static int CONNECT_TIME_OUT = 1000;    private static int READ_TIME_OUT = 1000;    private static byte[] BUFFER = new byte[1024];    public static final String DEFAULT_CHARSET = "UTF-8";    public static String get(String url) {        return get(url, null, DEFAULT_CHARSET);    }    public static String get(String url, String charset) {        return get(url, null, charset);    }    public static String get(String url, Map<String, String> header, String charset) {        return get(url, header, charset, CONNECT_TIME_OUT, READ_TIME_OUT);    }    public static String get(String url, Map<String, String> header,  String charset,             int connectTimeout, int readTimeout) {        String result = "";        try {            HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection();            connection.setUseCaches(false);            connection.setConnectTimeout(connectTimeout);            connection.setReadTimeout(readTimeout);            if (header != null) {                for (Map.Entry<String, String> entry : header.entrySet()) {                    connection.setRequestProperty(entry.getKey(), entry.getValue());                }            }            ByteArrayOutputStream out = new ByteArrayOutputStream();            int responseCode = connection.getResponseCode();            if (responseCode < HttpURLConnection.HTTP_BAD_REQUEST) {                InputStream is = connection.getInputStream();                int readCount;                while ((readCount = is.read(BUFFER)) > 0) {                    out.write(BUFFER, 0, readCount);                }                is.close();            } else {                LOGGER.warn("{} http response code is {}", url, responseCode);            }            connection.disconnect();            result = out.toString();        } catch (IOException e) {            LOGGER.error("{}", e.getMessage(), e);        }        return result;    }    public static String post(String url, Map<String, String> params) {        return post(url, params, DEFAULT_CHARSET);    }    public static String post(String url, Map<String, String> params, String charset) {        return post(url, params, null, charset);    }    public static String post(String url, Map<String, String> params, Map<String, String> header, String charset) {        return post(url, params, header, charset, CONNECT_TIME_OUT, READ_TIME_OUT);    }    public static String post(String url, Map<String, String> params, Map<String, String> header,             String charset, int connectTimeout, int readTimeout) {        String result = "";        try {            HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection();            connection.setRequestMethod("POST");            connection.setDoOutput(true);            connection.setUseCaches(false);            connection.setConnectTimeout(connectTimeout);            connection.setReadTimeout(readTimeout);            if (header != null) {                for (Map.Entry<String, String> entry : header.entrySet()) {                    connection.setRequestProperty(entry.getKey(), entry.getValue());                }            }            StringBuilder builder = new StringBuilder();            if (params != null) {                for (Map.Entry<String, String> entry : params.entrySet()) {                    builder.append(entry.getKey());                    builder.append("=");                    builder.append(entry.getValue());                    builder.append("&");                }            }            OutputStream out = connection.getOutputStream();            out.write(builder.toString().getBytes(charset));            out.flush();            ByteArrayOutputStream bout = new ByteArrayOutputStream();            if (connection.getResponseCode() < HttpURLConnection.HTTP_BAD_REQUEST) {                InputStream is = connection.getInputStream();                int readCount;                while ((readCount = is.read(BUFFER)) > 0) {                    bout.write(BUFFER, 0, readCount);                }                is.close();            }            connection.disconnect();            result = bout.toString();        } catch (IOException e) {            LOGGER.error("{}", e.getMessage(), e);        }        return result;    }}

 

http請求資料封裝