今天，小白的 get、post 请求。。。。。。

一、对于 get 请求，就是 url 和参数合并成一个接口请求地址

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.HashMap;
import java.util.Map;

import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;

public class DoGetRequest {

    /*
     * get请求方式
     * @author:Me
     */
    public static String httpGetMethod(String url,Map<Object,Object> map) throws InstantiationException, IllegalAccessException {

        HttpClient httpClient = new DefaultHttpClient();
        Object value;
        Object urlInfo = "";
        for(Object key : map.keySet()){
            value = map.get(key);
            urlInfo += key+"="+value+"&";
        }
        urlInfo = urlInfo.toString().substring(0, urlInfo.toString().length()-1);        
        url = url + "?" + urlInfo.toString();
        HttpGet httpGet = new HttpGet(url);
        HttpResponse httpResponse = null;
        try {
            httpResponse = httpClient.execute(httpGet);
            StringBuilder sb = new StringBuilder();
            InputStream inputStream = httpResponse.getEntity().getContent();
            BufferedReader br = new BufferedReader(new InputStreamReader(inputStream,"UTF-8"));
            String temp = "";
            while((temp = br.readLine()) != null){
                sb.append(temp + "\n");
            }
            return sb.toString();
        } catch (IllegalStateException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }        
        return null;        
    }
}

二、对于 post 请求，组装好参数类型，发送请求

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.Map;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.json.JSONObject;

@SuppressWarnings("deprecation")
public class DoPostMethod {

    /*
     * author:ME
     */
        @SuppressWarnings("deprecation")
        public String  HttpClientPostMethod(String url,Map map) {

            HttpClient httpClient = new DefaultHttpClient();
            HttpPost httpPost = new HttpPost(url);
            InputStream responseStream = null;
            //参数形式为JSON格式
            JSONObject parameter = new JSONObject(map);
            try {
                StringEntity entity = new StringEntity(parameter.toString());
                entity.setContentEncoding("UTF-8");    
                entity.setContentType("application/json"); //设置参数类型为JSON格式
                httpPost.setEntity(entity);
                HttpResponse httpResponse = httpClient.execute(httpPost);
                if(httpResponse.getStatusLine().getStatusCode() == 200){
                    HttpEntity httpEntity = httpResponse.getEntity();
                    responseStream = httpEntity.getContent();
                    BufferedReader br = new BufferedReader(new InputStreamReader(responseStream));
                    StringBuilder sb = new StringBuilder();
                    String temp = "";
                    while((temp = br.readLine()) != null){
                        String str = new String(temp.getBytes(), "UTF-8");
                        sb.append(str + "\n");
                    }
                    return sb.toString();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
            return null;        
        }
}