http访问服务器rest格式请求

Dear 丶 2022-08-04 05:07 211阅读 0赞

例子如下：

StringBuffer tokenurl = new StringBuffer();
            tokenurl.append(Functions.fldUrl()).append("/");
            tokenurl.append("token").append("/");
            tokenurl.append("get").append("/");
            tokenurl.append(Functions.fldUserid()).append("/");
            tokenurl.append(Functions.fldSecret());
            mv.addObject("Message", tokenurl);
            String accessToken="";
            try {
                accessToken = HttpURLConnectionUtil.httpURLConectionGET(tokenurl.toString());
            } catch (Exception e) {
                e.printStackTrace();
            }
            logger.info("获取AccessToken的URL:"+tokenurl);
            logger.info("返回结果:"+accessToken);
            Accesstoken token = JsonUtil.getAccessToken(accessToken);

package com.gbt.utils;
    
    import java.io.BufferedReader;
    import java.io.ByteArrayOutputStream;
    import java.io.InputStream;
    import java.io.InputStreamReader;
    import java.net.HttpURLConnection;
    import java.net.URL;
    
    public class HttpURLConnectionUtil { 
    
        public static String httpURLConectionGET(String fldUrl) throws Exception
        {
    
            URL url = new URL(fldUrl);
            HttpURLConnection connection = (HttpURLConnection)url.openConnection();
    
            //设置请求超时与请求方式 
            connection.setRequestProperty("contentType", "UTF-8");
            connection.setReadTimeout(5*1000);  
            connection.setRequestMethod("GET");  
    
            connection.connect();
    
            InputStream inStream = connection.getInputStream();
    
            BufferedReader in = new BufferedReader(new InputStreamReader(inStream, "UTF-8"));  
            StringBuffer buffer = new StringBuffer();  
            String line = "";  
            while ((line = in.readLine()) != null){  
              buffer.append(line);  
            }  
           String str = buffer.toString();  
    
           return str;
        }
    
    
         public static byte[] readInputStream(InputStream inStream) throws Exception{  
                ByteArrayOutputStream outStream = new ByteArrayOutputStream();  
                byte[] buffer = new byte[1024];  
                int len = 0;  
                while( (len=inStream.read(buffer)) != -1 ){  
                    outStream.write(buffer, 0, len);  
                }  
                inStream.close();  
                return outStream.toByteArray();  
            }  
    
    }