• http形式的webservice


      1 import java.io.ByteArrayOutputStream;
      2 import java.io.IOException;
      3 import java.io.InputStream;
      4 import java.io.OutputStream;
      5 import java.io.UnsupportedEncodingException;
      6 import java.net.HttpURLConnection;
      7 import java.net.MalformedURLException;
      8 import java.net.URL;
      9 import java.net.URLEncoder;
     10 import java.util.HashMap;
     11 import java.util.Map;
     12 
     13 import com.google.gson.Gson;
     14 /**
     15  * http格式的webservice主要工具类
     16  * @author Administrator
     17  *
     18  */
     19 public class HttpWebServiceUtils {
     20 
     21     /*
     22      * params 填写的URL的参数 encode 字节编码
     23      */
     24     public static String sendPostMessage(Map<String, String> params,String encode,String path) {
     25         URL url = null;
     26         try {
     27             url = new URL(path);
     28         } catch (MalformedURLException e1) {
     29             e1.printStackTrace();
     30             return "";
     31         };
     32 
     33         StringBuffer stringBuffer = new StringBuffer();
     34 
     35         if (params != null && !params.isEmpty()) {
     36             for (Map.Entry<String, String> entry : params.entrySet()) {
     37                 try {
     38                     stringBuffer
     39                             .append(entry.getKey())
     40                             .append("=")
     41                             .append(URLEncoder.encode(entry.getValue(), encode))
     42                             .append("&");
     43                 } catch (UnsupportedEncodingException e) {
     44                     e.printStackTrace();
     45                     return "";
     46                 }
     47             }
     48             //删掉最后一个 & 字符
     49             stringBuffer.deleteCharAt(stringBuffer.length() - 1);
     50             System.out.println("传递的所有参数信息:" + stringBuffer.toString());
     51             HttpURLConnection httpURLConnection = null;
     52             try {
     53                 httpURLConnection = (HttpURLConnection) url.openConnection();
     54                 httpURLConnection.setConnectTimeout(3000);
     55                 httpURLConnection.setDoInput(true);// 从服务器获取数据
     56                 httpURLConnection.setDoOutput(true);// 向服务器写入数据
     57 
     58                 //获得上传信息的字节大小及长度
     59                 byte[] mydata = stringBuffer.toString().getBytes();
     60                 //设置请求体的类型
     61                 httpURLConnection.setRequestProperty("Content-Type","application/x-www-form-urlencoded");
     62                 httpURLConnection.setRequestProperty("Content-Lenth",String.valueOf(mydata.length));
     63 
     64                 //获得输出流,向服务器输出数据
     65                 OutputStream outputStream = (OutputStream) httpURLConnection.getOutputStream();
     66                 outputStream.write(mydata);
     67                 outputStream.flush();// 强制把缓冲区的数据写入到文件并清空缓冲区
     68                 outputStream.close();// 关闭连接
     69                 //获得服务器响应的结果和状态码
     70                 int responseCode = httpURLConnection.getResponseCode();
     71                 if (responseCode == 200) {
     72                     //获得输入流,从服务器端获得数据
     73                     InputStream inputStream = (InputStream) httpURLConnection.getInputStream();
     74                     return (changeInputStream(inputStream, encode));
     75                 }
     76             } catch (IOException e) {
     77                 e.printStackTrace();
     78                 return "";
     79             } finally {
     80                 if (httpURLConnection != null) {
     81                     httpURLConnection.disconnect();
     82                 }
     83             }
     84         }
     85         return "";
     86     }
     87 
     88     /*
     89      *把从输入流InputStream按指定编码格式encode变成字符串String
     90      */
     91     public static String changeInputStream(InputStream inputStream,String encode) {
     92 
     93         // ByteArrayOutputStream 一般叫做内存流
     94         ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
     95         byte[] data = new byte[1024];
     96         int len = 0;
     97         String result = "";
     98         if (inputStream != null) {
     99 
    100             try {
    101                 while ((len = inputStream.read(data)) != -1) {
    102                     byteArrayOutputStream.write(data, 0, len);
    103                 }
    104                 result = new String(byteArrayOutputStream.toByteArray(), encode);
    105 
    106             } catch (IOException e) {
    107                 e.printStackTrace();
    108             }
    109         }
    110         return result;
    111     }
    112 
    113     public static void main(String[] args) {
    114         //http://localhost:8088/online.video/account/account!httpAddAccount.do
    115         //?account.userId=123&account.password=2&account.name=2&account.sex=1&account.type=0&account.phone=2
    116         //params是请求的参数的map形式
    117         Map<String, String> params = new HashMap<String, String>();
    118         params.put("account.userId", "1234");
    119         params.put("account.password", "123");
    120         params.put("account.name", "张三");
    121         params.put("account.sex", "0");
    122         params.put("account.type", "0");
    123         params.put("account.phone", "13888888888");
    124         //发送请求,得到响应结果
    125         String result = HttpWebServiceUtils.sendPostMessage(params, "UTF-8", 
    126                 "http://localhost:8088/online.video/account/account!httpAddAccount.do");
    127         System.out.println(result);
    128         Gson gson = new Gson();
    129         
    130         /*
    131          * 下面是对json格式的结果做json解析,用的是gson
    132          */
    133         
    134         /*GsonResult gsonResult = gson.fromJson(result, GsonResult.class);
    135         System.out.println(gsonResult.getSuccess());*/
    136     }
    137 }

    仿main方法的调用就可以了,接口方法就是在Controller里写一个这个请求的方法

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  • 原文地址:https://www.cnblogs.com/suhfj-825/p/8377288.html
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