java 接口转码、加密

备用

package http;

import java.io.UnsupportedEncodingException;
import sun.misc.*;  

public class Base64 {
    // ????
    public String getBase64(String str) {
        byte[] b = null;
        String s = null;
        try {
            b = str.getBytes("utf-8");
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
        if (b != null) {
            s = new BASE64Encoder().encode(b);
        }
        return s;
    }  

    // ????
    public String getFromBase64(String s) {
        byte[] b = null;
        String result = null;
        if (s != null) {
            BASE64Decoder decoder = new BASE64Decoder();
            try {
                b = decoder.decodeBuffer(s);
                result = new String(b, "utf-8");
                System.out.println(result);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        return result;
    }  

}  

Base64.java

package http;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;

public class get {

    public static void main(String[] args) throws Exception {
        System.out.println(doGet());
    }

    public static String doGet() throws Exception {
        URL localURL = new URL("http://www.cnblogs.com/tester-hehehe/");
        URLConnection connection = localURL.openConnection();
        HttpURLConnection httpURLConnection = (HttpURLConnection)connection;

        httpURLConnection.setRequestProperty("Accept-Charset", "utf-8");
        httpURLConnection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

        InputStream inputStream = null;
        InputStreamReader inputStreamReader = null;
        BufferedReader reader = null;
        StringBuffer resultBuffer = new StringBuffer();
        String tempLine = null;

        if (httpURLConnection.getResponseCode() >= 300) {
            throw new Exception("HTTP Request is not success, Response code is " + httpURLConnection.getResponseCode());
        }
        try {
            inputStream = httpURLConnection.getInputStream();
            inputStreamReader = new InputStreamReader(inputStream);
            reader = new BufferedReader(inputStreamReader);

            while ((tempLine = reader.readLine()) != null) {
                resultBuffer.append(tempLine);
            }
        } finally {
            if (reader != null) {
                reader.close();
            }
            if (inputStreamReader != null) {
                inputStreamReader.close();
            }
            if (inputStream != null) {
                inputStream.close();
            }
        }
        return resultBuffer.toString();
    }
}

get.java

package http;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;

import net.sf.json.JSONArray;
import net.sf.json.JSONObject;

public class login {
    public JSONObject Res(){
        String s="123";
        String mi;
        mi = md5.getKeyedDigest(s, "");
//        String res = "{‘md‘:‘###_pt_doc_cnt‘,‘page‘:‘hehe‘}";
        String res = "{‘page‘:‘gainview‘,‘md‘:‘partner_gain_pt_doc_cnt‘}";
        String result = new Base64().getBase64(res);
        System.out.println(result);
        ArrayList re = new ArrayList();
        Map req1 = new HashMap();
        req1.put("pid", "****");
        req1.put("authId", "***");
        req1.put("time", "***");
        req1.put("param", result);
        String req = "pid"+"authID"+"time"+result+"**私钥***";
        String req2;
        sha256 bb = new sha256();
        req2 = bb.Encrypt(req, "SHA-256");
        req1.put("sign", req2);
        System.out.println(req1);
        JSONObject jsonObject = JSONObject.fromObject(req1);
        //System.out.println(rr);
        return jsonObject;
    }
    public static void main(String[] argv){
        login a = new login();
        JSONObject b = a.Res();
        System.out.println(b);

    }
}

login.java

内容为从网上转载，直接套用
package http;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

/**
 * @author King_wangyao
 */
public class md5 {
    public static byte[] getKeyedDigest(byte[] buffer, byte[] key) {
        try {
            MessageDigest md5 = MessageDigest.getInstance("MD5");
            md5.update(buffer);
            return md5.digest(key);
        } catch (NoSuchAlgorithmException e) {
        }
        return null;
    }

    public static String getKeyedDigest(String strSrc, String key) {
        try {
            MessageDigest md5 = MessageDigest.getInstance("MD5");
            md5.update(strSrc.getBytes("UTF8"));

            String result="";
            byte[] temp;
            temp=md5.digest(key.getBytes("UTF8"));
            for (int i=0; i<temp.length; i++){
                result+=Integer.toHexString((0x000000ff & temp[i]) | 0xffffff00).substring(6);
            }
            return result;

        } catch (NoSuchAlgorithmException e) {

            e.printStackTrace();

        }catch(Exception e)
        {
          e.printStackTrace();
        }
        return null;
    }
    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        String mi;
        String s = "[email protected]";
        //第二个参数请填空字符串
        mi=md5.getKeyedDigest(s,"");
        System.out.println("mi:"+mi);
    }
}

md5.java

package http;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;

import net.sf.json.JSONObject;

public class post {
    public static void main(String[] args) throws Exception {
       // String result = new Base64().getFromBase64(doPost());
        System.out.println(doPost().getBytes());
    }

    public static String doPost() throws Exception {
        login lg = new login();
        JSONObject parameterData = lg.Res();
//        JSONObject parameterData = lg.Res();
        System.out.println(parameterData);
        URL localURL = new URL("http://***.wanlitong.com/");
        URLConnection connection = localURL.openConnection();
        HttpURLConnection httpURLConnection = (HttpURLConnection)connection;

        httpURLConnection.setDoOutput(true);
        httpURLConnection.setRequestMethod("POST");
        httpURLConnection.setRequestProperty("Accept-Charset", "utf-8");
        httpURLConnection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
        httpURLConnection.setRequestProperty("Content-Length", String.valueOf(parameterData.toString().length()));

        OutputStream outputStream = null;
        OutputStreamWriter outputStreamWriter = null;
        InputStream inputStream = null;
        InputStreamReader inputStreamReader = null;
        BufferedReader reader = null;
        StringBuffer resultBuffer = new StringBuffer();
        String tempLine = null;

        try {
            outputStream = httpURLConnection.getOutputStream();
            outputStreamWriter = new OutputStreamWriter(outputStream);

            outputStreamWriter.write(parameterData.toString());
            outputStreamWriter.flush();

            if (httpURLConnection.getResponseCode() >= 300) {
                throw new Exception("HTTP Request is not success, Response code is " + httpURLConnection.getResponseCode());
            }

            inputStream = httpURLConnection.getInputStream();
            inputStreamReader = new InputStreamReader(inputStream);
            reader = new BufferedReader(inputStreamReader);

            while ((tempLine = reader.readLine()) != null) {
                resultBuffer.append(tempLine);
            }
        } finally {
            if (outputStreamWriter != null) {
                outputStreamWriter.close();
            }
            if (outputStream != null) {
                outputStream.close();
            }
            if (reader != null) {
                reader.close();
            }
            if (inputStreamReader != null) {
                inputStreamReader.close();
            }
            if (inputStream != null) {
                inputStream.close();
            }
        }
        return resultBuffer.toString();
    }
}

post.java

package http;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class sha256 {
    public String Encrypt(String strSrc, String encName) {
        MessageDigest md = null;
        String strDes = null;

        byte[] bt = strSrc.getBytes();
        try {
            if (encName == null || encName.equals("")) {
                encName = "SHA-256";
            }
            md = MessageDigest.getInstance(encName);
            md.update(bt);
            strDes = bytes2Hex(md.digest()); // to HexString
        } catch (NoSuchAlgorithmException e) {
            return null;
        }
      //  System.out.println(strDes);
        return strDes;

    }

    public static String bytes2Hex(byte[] bts) {
        String des = "";
        String tmp = null;
        for (int i = 0; i < bts.length; i++) {
            tmp = (Integer.toHexString(bts[i] & 0xFF));
            if (tmp.length() == 1) {
                des += "0";
            }
            des += tmp;
        }
        return des;
    }
}

sha256.java