20210622 商品分类

xiaoyong931011

2021-06-22 38609ee05255ce5c36f308fe8d595555a86f9ba3

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package com.xzx.gc.util; 
 
import org.slf4j.Logger; 
import org.slf4j.LoggerFactory; 
 
import java.io.BufferedReader; 
import java.io.IOException; 
import java.io.InputStreamReader; 
import java.io.OutputStreamWriter; 
import java.net.URL; 
import java.net.URLConnection; 
 
public class HttpUtil { 
 
    private final static int CONNECT_TIMEOUT = 5000; // in milliseconds  连接超时的时间 
    private final static String DEFAULT_ENCODING = "UTF-8";  //字符串编码 
    private static Logger lg= LoggerFactory.getLogger(HttpUtil.class); 
 
    public static String postData(String urlStr, String data){ 
        return postData(urlStr, data, null); 
    } 
    /** 
     * post数据请求 
     * @param urlStr 
     * @param data 
     * @param contentType 
     * @return 
     */ 
    public static String postData(String urlStr, String data, String contentType){ 
        BufferedReader reader = null; 
        try { 
            URL url = new URL(urlStr); 
            URLConnection conn = url.openConnection(); 
            conn.setDoOutput(true); 
            conn.setConnectTimeout(CONNECT_TIMEOUT); 
            conn.setReadTimeout(CONNECT_TIMEOUT); 
            if(contentType != null){ 
                conn.setRequestProperty("content-type", contentType); 
 
            } 
            OutputStreamWriter writer = new OutputStreamWriter(conn.getOutputStream(), DEFAULT_ENCODING); 
            if(data == null){ 
                data = ""; 
 
            } 
            writer.write(data); 
            writer.flush(); 
            writer.close(); 
 
            reader = new BufferedReader(new InputStreamReader(conn.getInputStream(), DEFAULT_ENCODING)); 
            StringBuilder sb = new StringBuilder(); 
            String line = null; 
            while ((line = reader.readLine()) != null) { 
                sb.append(line); 
                sb.append("\r\n"); 
            } 
            return sb.toString(); 
        } catch (IOException e) { 
            lg.info("Error connecting to " + urlStr + ": " + e.getMessage()); 
        } finally { 
            try { 
                if (reader != null){ 
                    reader.close(); 
 
                } 
            } catch (IOException e) { 
            } 
        } 
        return null; 
    } 
}