java远程工具类

package com.zdz.httpclient;

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

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpException;
import org.apache.commons.httpclient.NameValuePair;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.methods.PostMethod;

/**
 * HttpClient 测试类，提供get post方法实例
 * @author zdz8207
 *
 */
public class HttpClientTest {
    private static final String URL = "http://www.163.com";
    private static final int PORT = 80;

    public static void main(String[] args) throws Exception {
        //测试get方法
        doGetMethod(URL,PORT);
        //测试post方法
        String posturl = "http://mail.163.com/";
        doPostMethod(posturl,PORT);
    }

    /**
     * http get 方法
     * @param url
     * @param port
     * @throws HttpException
     * @throws IOException
     * @return bodystring
     */
    public static String doGetMethod(String url,int port) throws HttpException, IOException {
        HttpClient client = new HttpClient();
        // 设置代理服务器地址和端口
        client.getHostConfiguration().setHost(url, port);
        // 使用 GET 方法
        GetMethod method = new GetMethod(url);
        //执行请求
        client.executeMethod(method);

        // 打印服务器返回的状态
        System.out.println(method.getStatusLine());
        // 打印返回的信息
//        System.out.println(method.getResponseBodyAsString());
        // response body of large or unknown size. Using getResponseBodyAsStream instead is recommended. 
        InputStream bodystreams = method.getResponseBodyAsStream();
        String body = convertStreamToString(bodystreams);
        System.out.println(body);
        // 释放连接
        method.releaseConnection();
        
        return body;
    }
    
    /**
     * http post 方法
     * @param url
     * @param port
     * @throws HttpException
     * @throws IOException
     * @return bodystring
     */
    public static String doPostMethod(String url,int port) throws HttpException, IOException {
        HttpClient client = new HttpClient();
        // 设置代理服务器地址和端口
        client.getHostConfiguration().setHost(url, port);
        // 使用POST方法
        PostMethod method = new PostMethod(url);
        //设置传递参数
        NameValuePair agent = new NameValuePair("User-Agent","Mozilla/4.0 (compatible; MSIE 8.0; Windows 2000)");
        NameValuePair username = new NameValuePair("email", "xxx@163.com");
        NameValuePair password = new NameValuePair("password", "xxxxxx");
        method.setRequestBody(new NameValuePair[] { agent, username, password });
        //执行请求
        client.executeMethod(method);
//        设置cookies
//        Cookie[] cookies = client.getState().getCookies();
//        client.getState().addCookies(cookies);
        
        // 打印服务器返回的状态
        System.out.println(method.getStatusLine());
        // 打印返回的信息
//        System.out.println(method.getResponseBodyAsString());
        // response body of large or unknown size. Using getResponseBodyAsStream instead is recommended. 
        InputStream bodystreams = method.getResponseBodyAsStream();
        String body = convertStreamToString(bodystreams);
        System.out.println(body);
        // 释放连接
        method.releaseConnection();
        
        return body;
    }
    
    /**
     * 把InputStream 转换成String返回
     * @param is InputStream
     * @return String
     * @throws UnsupportedEncodingException
     */
    public static String convertStreamToString(InputStream is) throws UnsupportedEncodingException {    
//        BufferedReader reader = new BufferedReader(new InputStreamReader(is));//输出的中文乱码
        BufferedReader reader = new BufferedReader(new InputStreamReader(is,"utf8")); //GBK
        StringBuilder sb = new StringBuilder();    
        String line = null;    
        try {    
            while ((line = reader.readLine()) != null) {
                sb.append(line + "
");    
            }    
        } catch (IOException e) {    
            e.printStackTrace();    
        } finally {    
            try {    
                is.close();    
            } catch (IOException e) {    
               e.printStackTrace();    
            }    
        }    
        return sb.toString();    
    }

}

package com.zdz.httpclient;
import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.SocketTimeoutException;
import java.net.URL;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;

import javax.imageio.ImageIO;
import javax.imageio.ImageReader;
import javax.imageio.stream.ImageInputStream;

public class HttpPostUtil {
    URL url;
    HttpURLConnection conn;
    String boundary = "--------httppost123";
    Map<String, String> textParams = new HashMap<String, String>();
    Map<String, File> fileparams = new HashMap<String, File>();
    DataOutputStream ds;

    public HttpPostUtil(String url) throws Exception {
        this.url = new URL(url);
    }
    //重新设置要请求的服务器地址，即上传文件的地址。
    public void setUrl(String url) throws Exception {
        this.url = new URL(url);
    }
    //增加一个普通字符串数据到form表单数据中
    public void addTextParameter(String name, String value) {
        textParams.put(name, value);
    }
    //增加一个文件到form表单数据中
    public void addFileParameter(String name, File value) {
        fileparams.put(name, value);
    }
    // 清空所有已添加的form表单数据
    public void clearAllParameters() {
        textParams.clear();
        fileparams.clear();
    }
    // 发送数据到服务器，返回一个字节包含服务器的返回结果的数组
    public byte[] send() throws Exception {
        initConnection();
        try {
            conn.connect();
        } catch (SocketTimeoutException e) {
            // something
            throw new RuntimeException();
        }
        ds = new DataOutputStream(conn.getOutputStream());
        writeFileParams();
        writeStringParams();
        paramsEnd();
        InputStream in = conn.getInputStream();
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        int b;
        while ((b = in.read()) != -1) {
            out.write(b);
        }
        conn.disconnect();
        return out.toByteArray();
    }
    //文件上传的connection的一些必须设置
    private void initConnection() throws Exception {
        conn = (HttpURLConnection) this.url.openConnection();
        conn.setDoOutput(true);
        conn.setUseCaches(false);
        conn.setConnectTimeout(10000); //连接超时为10秒
        conn.setRequestMethod("POST");
        conn.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + boundary);
        
        
    }
    //普通字符串数据
    private void writeStringParams() throws Exception {
        Set<String> keySet = textParams.keySet();
        for (Iterator<String> it = keySet.iterator(); it.hasNext();) {
            String name = it.next();
            String value = textParams.get(name);
            ds.writeBytes("--" + boundary + "
");
            ds.writeBytes("Content-Disposition: form-data; name="" + name
                    + ""
");
            ds.writeBytes("
");
            ds.writeBytes(encode(value) + "
");
        }
    }
    //文件数据
    private void writeFileParams() throws Exception {
        Set<String> keySet = fileparams.keySet();
        for (Iterator<String> it = keySet.iterator(); it.hasNext();) {
            String name = it.next();
            File value = fileparams.get(name);
            ds.writeBytes("--" + boundary + "
");
            ds.writeBytes("Content-Disposition: form-data; name="" + name
                    + ""; filename="" + encode(value.getName()) + ""
");
            ds.writeBytes("Content-Type: " + getContentType(value) + "
");
            ds.writeBytes("
");
            ds.write(getBytes(value));
            ds.writeBytes("
");
        }
    }
    //获取文件的上传类型，图片格式为image/png,image/jpg等。非图片为application/octet-stream
    private String getContentType(File f) throws Exception {
        
//        return "application/octet-stream";  // 此行不再细分是否为图片，全部作为application/octet-stream 类型
        ImageInputStream imagein = ImageIO.createImageInputStream(f);
        if (imagein == null) {
            return "application/octet-stream";
        }
        Iterator<ImageReader> it = ImageIO.getImageReaders(imagein);
        if (!it.hasNext()) {
            imagein.close();
            return "application/octet-stream";
        }
        imagein.close();
        return "image/" + it.next().getFormatName().toLowerCase();//将FormatName返回的值转换成小写，默认为大写

    }
    //把文件转换成字节数组
    private byte[] getBytes(File f) throws Exception {
        FileInputStream in = new FileInputStream(f);
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        byte[] b = new byte[1024];
        int n;
        while ((n = in.read(b)) != -1) {
            out.write(b, 0, n);
        }
        in.close();
        return out.toByteArray();
    }
    //添加结尾数据
    private void paramsEnd() throws Exception {
        ds.writeBytes("--" + boundary + "--" + "
");
        ds.writeBytes("
");
    }
    // 对包含中文的字符串进行转码，此为UTF-8。服务器那边要进行一次解码
    private String encode(String value) throws Exception{
        return URLEncoder.encode(value, "UTF-8");
    }
    
    
    @SuppressWarnings("unused")
    private String dyfsjk(String url,Map<String, String> map1,Map<String, File> map2){
        URL ycurl=null ;
        HttpURLConnection  conn =null ;
        DataOutputStream ds = null ;
        String boundary = "--------httppost123";
        String result = null ;
        try {
            ycurl= new URL(url);
            conn = (HttpURLConnection)ycurl.openConnection();
            conn.setDoOutput(true);
            conn.setUseCaches(false);
            conn.setConnectTimeout(10000); //连接超时为10秒
            conn.setRequestMethod("POST");
            conn.setRequestProperty("Content-Type", "multipart/form-data; boundary="+boundary);
            conn.connect();
            ds= new DataOutputStream(conn.getOutputStream());
            Set<String> keySet = map2.keySet();
            for (Iterator<String> it = keySet.iterator(); it.hasNext();) {
                String name = it.next();
                File value = map2.get(name);
                ds.writeBytes("--" + boundary + "
");
                ds.writeBytes("Content-Disposition: form-data; name="" + name
                        + ""; filename="" + URLEncoder.encode(value.getName(), "UTF-8") + ""
");
                ds.writeBytes("Content-Type: " + getContentType(value) + "
");
                ds.writeBytes("
");
                ds.write(getBytes(value));
                ds.writeBytes("
");
            }
            Set<String> keySet2 = map1.keySet();
            for (Iterator<String> it = keySet2.iterator(); it.hasNext();) {
                String name = it.next();
                String value = map1.get(name);
                ds.writeBytes("--" + boundary + "
");
                ds.writeBytes("Content-Disposition: form-data; name="" + name
                        + ""
");
                ds.writeBytes("
");
                ds.writeBytes(URLEncoder.encode(value, "UTF-8") + "
");
            }
            ds.writeBytes("--" + boundary + "--" + "
");
            ds.writeBytes("
");
            InputStream in = conn.getInputStream();
            ByteArrayOutputStream out = new ByteArrayOutputStream();
            int b;
            while ((b = in.read()) != -1) {
                out.write(b);
            }
            conn.disconnect();
            
            byte[] b1 = out.toByteArray();
            result = new String(b1,"UTF-8");
            
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return result;
    }
    
    
    public static void main(String[] args) throws Exception {
        HttpPostUtil u = new HttpPostUtil("http://192.168.0.13:31415/g/shanghaiTest/");
/*        u.addFileParameter("image", new File("C:/1e2b33ab-156f-4272-889a-7b35b5dedb31.jpg"));
        u.addTextParameter("tag", "aaaaaaaaa");
        u.addTextParameter("tag", "aaaaaaaaa");
        u.addTextParameter("MD5", "20be0ce11fcc2f9ca76f8a8487cf57d9");
        byte[] b = u.send();
        String result = new String(b,"UTF-8");
//        result = java.net.URLDecoder.decode(result,"UTF-8");
        System.out.println(result);*/
        Map<String, String> map1 = new HashMap<String, String>();
        map1.put("group", "shanghaiTest");
        map1.put("limit", "3");
        Map<String, File> map2 = new HashMap<String, File>();
        map2.put("image", new File("C:/1e2b33ab-156f-4272-889a-7b35b5dedb31.jpg"));
        String result1 = u.dyfsjk("http://192.168.0.13:31415/search", map1, map2);
        System.out.println(result1);
         
    }
    
    
    

}

package com.zdz.httpclient;

import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import javax.activation.MimetypesFileTypeMap;

/**
 * java通过模拟post方式提交表单实现图片上传功能实例
 * 其他文件类型可以传入 contentType 实现
 * @author zdz8207
 * {@link http://www.cnblogs.com/zdz8207/}
 * @version 1.0
 */
public class HttpUploadFile {

    public static void main(String[] args) {
        testUploadImage();
    }
    
    /**
     * 测试上传png图片
     * 
     */
    public static void testUploadImage(){
        String url = "http://192.168.0.13:31415/g/shanghaiTest/";
        String fileName = "C:/1e2b33ab-156f-4272-889a-7b35b5dedb31.jpg";
        Map<String, String> textMap = new HashMap<String, String>();
        //可以设置多个input的name，value
        textMap.put("name", "testname");
        textMap.put("type", "2");
        //设置file的name，路径
        Map<String, String> fileMap = new HashMap<String, String>();
        fileMap.put("upfile", fileName);
        String contentType = "";//image/png
        String ret = formUpload(url, textMap, fileMap,contentType);
        System.out.println(ret);
        //{"status":"0","message":"add succeed","baking_url":"group1/M00/00/A8/CgACJ1Zo-LuAN207AAQA3nlGY5k151.png"}
    }

    /**
     * 上传图片
     * @param urlStr
     * @param textMap
     * @param fileMap
     * @param contentType 没有传入文件类型默认采用application/octet-stream
     * contentType非空采用filename匹配默认的图片类型
     * @return 返回response数据
     */
    @SuppressWarnings("rawtypes")
    public static String formUpload(String urlStr, Map<String, String> textMap,
            Map<String, String> fileMap,String contentType) {
        String res = "";
        HttpURLConnection conn = null;
        // boundary就是request头和上传文件内容的分隔符
        String BOUNDARY = "---------------------------123821742118716"; 
        try {
            URL url = new URL(urlStr);
            conn = (HttpURLConnection) url.openConnection();
            conn.setConnectTimeout(5000);
            conn.setReadTimeout(30000);
            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; U; Windows NT 6.1; zh-CN; rv:1.9.2.6)");
            conn.setRequestProperty("Content-Type",
                    "multipart/form-data; boundary=" + BOUNDARY);
            OutputStream out = new DataOutputStream(conn.getOutputStream());
            // text
            if (textMap != null) {
                StringBuffer strBuf = new StringBuffer();
                Iterator iter = textMap.entrySet().iterator();
                while (iter.hasNext()) {
                    Map.Entry entry = (Map.Entry) iter.next();
                    String inputName = (String) entry.getKey();
                    String inputValue = (String) entry.getValue();
                    if (inputValue == null) {
                        continue;
                    }
                    strBuf.append("
").append("--").append(BOUNDARY)
                            .append("
");
                    strBuf.append("Content-Disposition: form-data; name=""
                            + inputName + ""

");
                    strBuf.append(inputValue);
                }
                out.write(strBuf.toString().getBytes());
            }
            // file
            if (fileMap != null) {
                Iterator iter = fileMap.entrySet().iterator();
                while (iter.hasNext()) {
                    Map.Entry entry = (Map.Entry) iter.next();
                    String inputName = (String) entry.getKey();
                    String inputValue = (String) entry.getValue();
                    if (inputValue == null) {
                        continue;
                    }
                    File file = new File(inputValue);
                    String filename = file.getName();
                    
                    //没有传入文件类型，同时根据文件获取不到类型，默认采用application/octet-stream
                    contentType = new MimetypesFileTypeMap().getContentType(file);
                    //contentType非空采用filename匹配默认的图片类型
                    if(!"".equals(contentType)){
                        if (filename.endsWith(".png")) {
                            contentType = "image/png"; 
                        }else if (filename.endsWith(".jpg") || filename.endsWith(".jpeg") || filename.endsWith(".jpe")) {
                            contentType = "image/jpeg";
                        }else if (filename.endsWith(".gif")) {
                            contentType = "image/gif";
                        }else if (filename.endsWith(".ico")) {
                            contentType = "image/image/x-icon";
                        }
                    }
                    if (contentType == null || "".equals(contentType)) {
                        contentType = "application/octet-stream";
                    }
                    StringBuffer strBuf = new StringBuffer();
                    strBuf.append("
").append("--").append(BOUNDARY)
                            .append("
");
                    strBuf.append("Content-Disposition: form-data; name=""
                            + inputName + ""; filename="" + filename
                            + ""
");
                    strBuf.append("Content-Type:" + contentType + "

");
                    out.write(strBuf.toString().getBytes());
                    DataInputStream in = new DataInputStream(
                            new FileInputStream(file));
                    int bytes = 0;
                    byte[] bufferOut = new byte[1024];
                    while ((bytes = in.read(bufferOut)) != -1) {
                        out.write(bufferOut, 0, bytes);
                    }
                    in.close();
                }
            }
            byte[] endData = ("
--" + BOUNDARY + "--
").getBytes();
            out.write(endData);
            out.flush();
            out.close();
            // 读取返回数据
            StringBuffer strBuf = new StringBuffer();
            BufferedReader reader = new BufferedReader(new InputStreamReader(
                    conn.getInputStream()));
            String line = null;
            while ((line = reader.readLine()) != null) {
                strBuf.append(line).append("
");
            }
            res = strBuf.toString();
            reader.close();
            reader = null;
        } catch (Exception e) {
            System.out.println("发送POST请求出错。" + urlStr);
            e.printStackTrace();
        } finally {
            if (conn != null) {
                conn.disconnect();
                conn = null;
            }
        }
        return res;
    }
}