接口使用Http发送post请求工具类

HttpClientKit

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;

import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicHeader;
import org.apache.http.protocol.HTTP;

import com.alibaba.fastjson.JSONObject;


/**
 * @ClassName HttpClientKit.java
 * @Description TODO
 *
 * @author D.C
 * @version V1.0
 * @CreateDate 2018年1月3日 下午8:21:49
 *
 */
public class HttpClientKit {

     public static String post(String url, net.sf.json.JSONObject json) {

             CloseableHttpClient client = HttpClients.createDefault();
            HttpPost post = new HttpPost(url);
            
            post.setHeader("Content-Type", "application/json");
            post.addHeader("Authorization", "Basic YWRtaW46");
            String result = "";
            
            try {

                StringEntity s = new StringEntity(json.toString(), "utf-8");
                s.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE,
                        "application/json"));
                post.setEntity(s);

                // 发送请求
                HttpResponse httpResponse = client.execute(post);

                // 获取响应输入流
                InputStream inStream = httpResponse.getEntity().getContent();
                BufferedReader reader = new BufferedReader(new InputStreamReader(
                        inStream, "utf-8"));
                StringBuilder strber = new StringBuilder();
                String line = null;
                while ((line = reader.readLine()) != null)
                    strber.append(line + "\n");
                inStream.close();

                result = strber.toString();
                System.out.println(result);
                
                if (httpResponse.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
                    System.out.println("请求服务器成功，做相应处理");
                } else {
                    System.out.println("请求服务端失败");
                }
            } catch (Exception e) {
                System.out.println("请求异常");
                throw new RuntimeException(e);
            }
            finally {
                //client.
            }
            return result;
        }
     
     public static String postMsg(String url, JSONObject json) {

             CloseableHttpClient client = HttpClients.createDefault();
            HttpPost post = new HttpPost(url);
            
            post.setHeader("Content-Type", "application/json");
            //post.addHeader("Authorization", "Basic YWRtaW46");
            post.addHeader("ApiKey", "hswl");
            post.addHeader("PostMethod", "POST");
            String result = "";
            
            try {

                StringEntity s = new StringEntity(json.toString(), "utf-8");
                s.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE,
                        "application/json"));
                post.setEntity(s);

                // 发送请求
                HttpResponse httpResponse = client.execute(post);

                // 获取响应输入流
                InputStream inStream = httpResponse.getEntity().getContent();
                BufferedReader reader = new BufferedReader(new InputStreamReader(
                        inStream, "utf-8"));
                StringBuilder strber = new StringBuilder();
                String line = null;
                while ((line = reader.readLine()) != null)
                    strber.append(line + "\n");
                inStream.close();

                result = strber.toString();
                System.out.println(result);
                
                if (httpResponse.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
                 System.out.println("请求服务器成功，做相应处理");
                } else {
                    System.out.println("请求服务端失败");
                }
            } catch (Exception e) {
                System.out.println("请求异常");
                throw new RuntimeException(e);
            }
            finally {
                //client.
            }
            return result;
        }
}

HttpKit

import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.Map;
import java.util.Map.Entry;

import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;

/**
 * @ClassName HttpKit.java
 * @Description TODO
 */
public class HttpKit {
    
    private static final String DEFAULT_CHARSET = "UTF-8";
    

    /**
     * 发送Get请求
     * @param url
     * @return
     * @throws NoSuchProviderException 
     * @throws NoSuchAlgorithmException 
     * @throws IOException 
     * @throws KeyManagementException 
     */
    public static String get(String url) throws NoSuchAlgorithmException, NoSuchProviderException, IOException, KeyManagementException {
        StringBuffer bufferRes = new StringBuffer();
        try {
        TrustManager[] tm = { new MyX509TrustManager() };  
        SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");  
        sslContext.init(null, tm, new java.security.SecureRandom());  
        // 从上述SSLContext对象中得到SSLSocketFactory对象  
        SSLSocketFactory ssf = sslContext.getSocketFactory();
        
        URL urlGet = new URL(url);
        HttpsURLConnection http = (HttpsURLConnection) urlGet.openConnection();
        // 连接超时
        http.setConnectTimeout(50000);
        // 读取超时 --服务器响应比较慢，增大时间
        http.setReadTimeout(50000);
        http.setRequestMethod("GET");
        http.setRequestProperty("Content-Type","application/x-www-form-urlencoded");
        http.setSSLSocketFactory(ssf);
        http.setDoOutput(true);
        http.setDoInput(true);
        http.connect();
        
        InputStream in = http.getInputStream();
        BufferedReader read = new BufferedReader(new InputStreamReader(in, DEFAULT_CHARSET));
        String valueString = null;
        //bufferRes = new StringBuffer();
        
        while ((valueString = read.readLine()) != null){
            bufferRes.append(valueString);
        }
        in.close();
        if (http != null) {
            // 关闭连接
            http.disconnect();
        }
        } catch (Exception e) {
        }
        return bufferRes.toString();
    }
    
    /**
     * 发送Get请求
     * @param url
     * @return
     * @throws NoSuchProviderException 
     * @throws NoSuchAlgorithmException 
     * @throws IOException 
     * @throws KeyManagementException 
     */
    public static String get(String url,Boolean https) throws NoSuchAlgorithmException, NoSuchProviderException, IOException, KeyManagementException {
        if(https != null && https){
            return get(url);
        }else{
            StringBuffer bufferRes = null;
            URL urlGet = new URL(url);
            HttpURLConnection http = (HttpURLConnection) urlGet.openConnection();
            // 连接超时
            http.setConnectTimeout(25000);
            // 读取超时 --服务器响应比较慢，增大时间
            http.setReadTimeout(25000);
            http.setRequestMethod("GET");
            http.setRequestProperty("Content-Type","application/x-www-form-urlencoded");
            http.setDoOutput(true);
            http.setDoInput(true);
            http.connect();
            
            InputStream in = http.getInputStream();
            BufferedReader read = new BufferedReader(new InputStreamReader(in, DEFAULT_CHARSET));
            String valueString = null;
            bufferRes = new StringBuffer();
            while ((valueString = read.readLine()) != null){
                bufferRes.append(valueString);
            }
            in.close();
            if (http != null) {
                // 关闭连接
                http.disconnect();
            }
            return bufferRes.toString();
        }
    }

    /**
     *  发送Get请求
     * @param url
     * @param params
     * @return
     * @throws IOException 
     * @throws NoSuchProviderException 
     * @throws NoSuchAlgorithmException 
     * @throws KeyManagementException 
     */
    public static String get(String url, Map<String, String> params) throws KeyManagementException, NoSuchAlgorithmException, NoSuchProviderException, IOException {
        return get(initParams(url, params));
    }

    /**
     *  发送Post请求
     * @param url
     * @param params
     * @return
     * @throws IOException 
     * @throws NoSuchProviderException 
     * @throws NoSuchAlgorithmException 
     * @throws KeyManagementException 
     */
    public static String post(String url, String params) throws IOException, NoSuchAlgorithmException, NoSuchProviderException, KeyManagementException {
            StringBuffer bufferRes = null;
            TrustManager[] tm = { new MyX509TrustManager() };
            SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");
            sslContext.init(null, tm, new java.security.SecureRandom());
            // 从上述SSLContext对象中得到SSLSocketFactory对象  
            SSLSocketFactory ssf = sslContext.getSocketFactory();
System.out.println("url:"+url+"   params: "+params);
            URL urlGet = new URL(url);
            HttpsURLConnection http = (HttpsURLConnection) urlGet.openConnection();
            // 连接超时
            http.setConnectTimeout(25000);
            // 读取超时 --服务器响应比较慢，增大时间
            http.setReadTimeout(25000);
            http.setRequestMethod("POST");
            http.setRequestProperty("Content-Type","application/x-www-form-urlencoded");
            http.setSSLSocketFactory(ssf);
            http.setDoOutput(true);
            http.setDoInput(true);
            http.connect();

            OutputStream out = http.getOutputStream();
            out.write(params.getBytes("UTF-8"));
            out.flush();
            out.close();

            InputStream in = http.getInputStream();
            BufferedReader read = new BufferedReader(new InputStreamReader(in, DEFAULT_CHARSET));
            String valueString = null;
            bufferRes = new StringBuffer();
            while ((valueString = read.readLine()) != null){
                bufferRes.append(valueString);
            }
            in.close();
            if (http != null) {
                // 关闭连接
                http.disconnect();
            }
            return bufferRes.toString();
    }
    
    /**
     * 向指定 URL 发送POST方法的请求
     * 
     * @param url
     *            发送请求的 URL
     * @param param
     *            请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
     * @return 所代表远程资源的响应结果
     */
    public static String sendPost(String url, String param) {
        PrintWriter out = null;
        BufferedReader in = null;
        String result = "";
        try {
            URL realUrl = new URL(url);
            // 打开和URL之间的连接
            URLConnection conn = realUrl.openConnection();
            // 设置通用的请求属性
            conn.setRequestProperty("accept", "*/*");
            conn.setRequestProperty("connection", "Keep-Alive");
            conn.setRequestProperty("user-agent",
                    "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
            // 发送POST请求必须设置如下两行
            conn.setDoOutput(true);
            conn.setDoInput(true);
            // 获取URLConnection对象对应的输出流
            out = new PrintWriter(conn.getOutputStream());
            // 发送请求参数
            out.print(param);
            // flush输出流的缓冲
            out.flush();
            // 定义BufferedReader输入流来读取URL的响应
            in = new BufferedReader(
                    new InputStreamReader(conn.getInputStream()));
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
        } catch (Exception e) {
            System.out.println("发送 POST 请求出现异常！"+e);
            e.printStackTrace();
        }
        //使用finally块来关闭输出流、输入流
        finally{
            try{
                if(out!=null){
                    out.close();
                }
                if(in!=null){
                    in.close();
                }
            }
            catch(IOException ex){
                ex.printStackTrace();
            }
        }
        return result;
    } 
    
    /**
     * 上传媒体文件
     * @param url
     * @param params
     * @param file
     * @return
     * @throws IOException
     * @throws NoSuchAlgorithmException
     * @throws NoSuchProviderException
     * @throws KeyManagementException
     */
    public static String upload(String url,File file) throws IOException, NoSuchAlgorithmException, NoSuchProviderException, KeyManagementException {
            String BOUNDARY = "----WebKitFormBoundaryiDGnV9zdZA1eM1yL"; // 定义数据分隔线  
            StringBuffer bufferRes = null;
            URL urlGet = new URL(url);
            HttpURLConnection conn = (HttpURLConnection) urlGet.openConnection();
            conn.setDoOutput(true);  
            conn.setDoInput(true);  
            conn.setUseCaches(false);  
            conn.setRequestMethod("POST");  
            conn.setRequestProperty("connection", "Keep-Alive");  
            conn.setRequestProperty("user-agent", "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/32.0.1700.107 Safari/537.36");  
            conn.setRequestProperty("Charsert", "UTF-8");   
            conn.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + BOUNDARY);  
              
            OutputStream out = new DataOutputStream(conn.getOutputStream());  
            byte[] end_data = ("\r\n--" + BOUNDARY + "--\r\n").getBytes();// 定义最后数据分隔线  
            StringBuilder sb = new StringBuilder();    
            sb.append("--");    
            sb.append(BOUNDARY);    
            sb.append("\r\n");    
            sb.append("Content-Disposition: form-data;name=\"media\";filename=\""+ file.getName() + "\"\r\n");    
            sb.append("Content-Type:application/octet-stream\r\n\r\n");    
            byte[] data = sb.toString().getBytes();  
            out.write(data);  
            DataInputStream fs = new DataInputStream(new FileInputStream(file));  
            int bytes = 0;  
            byte[] bufferOut = new byte[1024];  
            while ((bytes = fs.read(bufferOut)) != -1) {  
                out.write(bufferOut, 0, bytes);  
            }  
            out.write("\r\n".getBytes()); //多个文件时，二个文件之间加入这个  
            fs.close();  
            out.write(end_data);  
            out.flush();    
            out.close();   
              
            // 定义BufferedReader输入流来读取URL的响应  
            InputStream in = conn.getInputStream();
            BufferedReader read = new BufferedReader(new InputStreamReader(in, DEFAULT_CHARSET));
            String valueString = null;
            bufferRes = new StringBuffer();
            while ((valueString = read.readLine()) != null){
                bufferRes.append(valueString);
            }
            in.close();
            if (conn != null) {
                // 关闭连接
                conn.disconnect();
            }
            return bufferRes.toString();
    }
    
    /**
     * 下载资源
     * @param url
     * @return
     * @throws IOException
     */

    /**
     *
     * @param url
     * @param params
     * @return
     */
    private static String initParams(String url, Map<String, String> params){
        if (null == params || params.isEmpty()) {
            return url;
        }
        StringBuilder sb = new StringBuilder(url);
        if (url.indexOf("?") == -1) {
            sb.append("?");
        } else {
            sb.append("&");
        }
        boolean first = true;
        for (Entry<String, String> entry : params.entrySet()) {
            if (first) {
                first = false;
            } else {
                sb.append("&");
            }
            String key = entry.getKey();
            String value = entry.getValue();
            sb.append(key).append("=");
            if (value != null && !value.equals("")) {
                try {
                    sb.append(URLEncoder.encode(value, DEFAULT_CHARSET));
                } catch (UnsupportedEncodingException e) {
                    e.printStackTrace();
                }
            }
        }
        return sb.toString();
    }
    
    public static void main(String[] args) throws Exception{
        String result = get("http://localhost:8080/hstms/AjaxWebApiTester?param1=hello&param2=java&param3=world", false);
        System.out.println(result);
    }
}

/**
 * 证书管理
 */
class MyX509TrustManager implements X509TrustManager {

    public X509Certificate[] getAcceptedIssuers() {
        return null;  
    }

    @Override
    public void checkClientTrusted(X509Certificate[] chain, String authType)
            throws CertificateException {
    }

    @Override
    public void checkServerTrusted(X509Certificate[] chain, String authType)
            throws CertificateException {
    }
}

测试方法、

    Map<String, Object> map = new HashMap<String, Object>();
        map.put("oid", jsonObject.get("oid"));
        map.put("soid", jsonObject.get("soid"));
        map.put("code", jsonObject.get("code"));
        map.put("name", jsonObject.get("name"));
        System.out.println("任务启动jsonObject"+jsonObject.toString());

        net.sf.json.JSONObject json = net.sf.json.JSONObject.fromObject(map);

        String result=HttpClientKit.post(POST_URL,json);
        
        return result;