Java工程师高薪训练营

Posted 2021-09-03 求索

download:Java工程师高薪训练营

import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Map;

import net.sf.json.JSONObject;

/**
*星座运势调用示例代码 － 聚合数据
*在线接口文档：http://www.juhe.cn/docs/58
**/

public class JuheDemo {

public static final String DEF_CHATSET = "UTF-8";
public static final int DEF_CONN_TIMEOUT = 30000;
public static final int DEF_READ_TIMEOUT = 30000;
public static 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
public static final String APPKEY ="*************************";

//1.运势查询
public static void getRequest1(){
    String result =null;
    String url ="http://web.juhe.cn:8080/constellation/getAll";//请求接口地址
    Map params = new HashMap();//请求参数
        params.put("key",APPKEY);//应用APPKEY(应用详细页查询)
        params.put("consName","");//星座名称，如:白羊座
        params.put("type","");//运势类型：today,tomorrow,week,nextweek,month,year

    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();
    }
}

public static 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
 */
public static String net(String strUrl, Map params,String method) throws Exception {
    HttpURLConnection conn = null;
    BufferedReader reader = null;
    String rs = null;
    try {
        StringBuffer sb = new StringBuffer();
        if(method==null || method.equals("GET")){
            strUrl = strUrl+"?"+urlencode(params);
        }
        URL url = new URL(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 = new DataOutputStream(conn.getOutputStream());
                    out.writeBytes(urlencode(params));
            } catch (Exception e) {
                // TODO: handle exception
            }
        }
        InputStream is = conn.getInputStream();
        reader = new BufferedReader(new InputStreamReader(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();
        }
    }
    return rs;
}

//将map型转为请求参数型
public static String urlencode(Map<String,Object>data) {
    StringBuilder sb = new StringBuilder();
    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();
        }
    }
    return sb.toString();
}