基于JAVA的黄金数据接口调用代码实例

来源：互联网发布：汛情数据统计编辑：程序博客网时间：2024/05/22 13:09
1. [代码][Java]代码跳至 [1] [全屏预览]

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importjava.io.BufferedReader;
importjava.io.DataOutputStream;
importjava.io.IOException;
importjava.io.InputStream;
importjava.io.InputStreamReader;
importjava.io.UnsupportedEncodingException;
importjava.net.HttpURLConnection;
importjava.net.URL;
importjava.net.URLEncoder;
importjava.util.HashMap;
importjava.util.Map;
  
importnet.sf.json.JSONObject;
  
/**
*黄金数据调用示例代码 － 聚合数据
*在线接口文档：http://www.juhe.cn/docs/29
**/
  
publicclass JuheDemo {
    publicstatic final String DEF_CHATSET = "UTF-8";
    publicstatic final int DEF_CONN_TIMEOUT = 30000;
    publicstatic final int DEF_READ_TIMEOUT = 30000;
    publicstatic String userAgent =  "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.66 Safari/537.36";
  
    //配置您申请的KEY
    publicstatic final String APPKEY ="*************************";
  
    //1.上海黄金交易所
    publicstatic void getRequest1(){
        String result =null;
        String url ="http://web.juhe.cn:8080/finance/gold/shgold";//请求接口地址
        Map params = newHashMap();//请求参数
            params.put("key",APPKEY);//APP Key
            params.put("v","");//JSON格式版本(0或1)默认为0
  
        try{
            result =net(url, params, "GET");
            JSONObject object = JSONObject.fromObject(result);
            if(object.getInt("error_code")==0){
                System.out.println(object.get("result"));
            }else{
                System.out.println(object.get("error_code")+":"+object.get("reason"));
            }
        }catch(Exception e) {
            e.printStackTrace();
        }
    }
  
    //2.上海期货交易所
    publicstatic void getRequest2(){
        String result =null;
        String url ="http://web.juhe.cn:8080/finance/gold/shfuture";//请求接口地址
        Map params = newHashMap();//请求参数
            params.put("key",APPKEY);//APP Key
            params.put("v","");//JSON格式版本(0或1)默认为0
  
        try{
            result =net(url, params, "GET");
            JSONObject object = JSONObject.fromObject(result);
            if(object.getInt("error_code")==0){
                System.out.println(object.get("result"));
            }else{
                System.out.println(object.get("error_code")+":"+object.get("reason"));
            }
        }catch(Exception e) {
            e.printStackTrace();
        }
    }
  
    //3.银行账户黄金
    publicstatic void getRequest3(){
        String result =null;
        String url ="http://web.juhe.cn:8080/finance/gold/bankgold";//请求接口地址
        Map params = newHashMap();//请求参数
            params.put("key",APPKEY);//APP Key
  
        try{
            result =net(url, params, "GET");
            JSONObject object = JSONObject.fromObject(result);
            if(object.getInt("error_code")==0){
                System.out.println(object.get("result"));
            }else{
                System.out.println(object.get("error_code")+":"+object.get("reason"));
            }
        }catch(Exception e) {
            e.printStackTrace();
        }
    }
  
  
  
    publicstatic void main(String[] args) {
  
    }
  
    /**
     *
     * @param strUrl 请求地址
     * @param params 请求参数
     * @param method 请求方法
     * @return  网络请求字符串
     * @throws Exception
     */
    publicstatic String net(String strUrl, Map params,String method) throwsException {
        HttpURLConnection conn = null;
        BufferedReader reader = null;
        String rs = null;
        try{
            StringBuffer sb = newStringBuffer();
            if(method==null|| method.equals("GET")){
                strUrl = strUrl+"?"+urlencode(params);
            }
            URL url = newURL(strUrl);
            conn = (HttpURLConnection) url.openConnection();
            if(method==null|| method.equals("GET")){
                conn.setRequestMethod("GET");
            }else{
                conn.setRequestMethod("POST");
                conn.setDoOutput(true);
            }
            conn.setRequestProperty("User-agent", userAgent);
            conn.setUseCaches(false);
            conn.setConnectTimeout(DEF_CONN_TIMEOUT);
            conn.setReadTimeout(DEF_READ_TIMEOUT);
            conn.setInstanceFollowRedirects(false);
            conn.connect();
            if(params!= null&& method.equals("POST")) {
                try{
                    DataOutputStream out = newDataOutputStream(conn.getOutputStream());
                        out.writeBytes(urlencode(params));
                }catch(Exception e) {
                    // TODO: handle exception
                }
            }
            InputStream is = conn.getInputStream();
            reader = newBufferedReader(newInputStreamReader(is, DEF_CHATSET));
            String strRead = null;
            while((strRead = reader.readLine()) != null) {
                sb.append(strRead);
            }
            rs = sb.toString();
        }catch(IOException e) {
            e.printStackTrace();
        }finally{
            if(reader != null) {
                reader.close();
            }
            if(conn != null) {
                conn.disconnect();
            }
        }
        returnrs;
    }
  
    //将map型转为请求参数型
    publicstatic String urlencode(Map<String,Object>data) {
        StringBuilder sb = newStringBuilder();
        for(Map.Entry i : data.entrySet()) {
            try{
                sb.append(i.getKey()).append("=").append(URLEncoder.encode(i.getValue()+"","UTF-8")).append("&");
            }catch(UnsupportedEncodingException e) {
                e.printStackTrace();
            }
        }
        returnsb.toString();
    }
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基于JAVA的黄金数据接口调用代码实例

1. [代码][Java]代码 跳至 [1] [全屏预览]

1. [代码][Java]代码跳至 [1] [全屏预览]
