formfile文件上传使用示例

/**
 * 上传的文件
 */
public class FormFile {
    private final static String LOGKEY = "FormFile";
    /** 上传文件的数据 */
    private byte[] data;
    private InputStream inStream;
    private File file;
    /** 文件名称 */
    private String filname;
    /** 请求参数名称 */
    private String parameterName;
    /** 内容类型 */
    private String contentType = "application/octet-stream";

    /**
     *
     * @param filname
     *            文件名称
     * @param data
     *            上传的文件数据
     * @param parameterName
     *            参数
     * @param contentType
     *            内容类型
     */
    public FormFile(String filname, byte[] data, String parameterName,
            String contentType) {
        this.data = data;
        this.filname = filname;
        this.parameterName = parameterName;
        if (contentType != null)
            this.contentType = contentType;
    }

    /**
     *
     * @param filname
     *            文件名
     * @param file
     *            上传的文件
     * @param parameterName
     *            参数
     * @param contentType
     *            内容内容类型
     */
    public FormFile(String filname, File file, String parameterName,
            String contentType) {
        this.filname = filname;
        this.parameterName = parameterName;
        this.file = file;
        try {
            this.inStream = new FileInputStream(file);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
        if (contentType != null)
            this.contentType = contentType;
    }

    public File getFile() {
        return file;
    }

    public InputStream getInStream() {
        return inStream;
    }

    public byte[] getData() {
        return data;
    }

    public String getFilname() {
        return filname;
    }

    public void setFilname(String filname) {
        this.filname = filname;
    }

    public String getParameterName() {
        return parameterName;
    }

    public void setParameterName(String parameterName) {
        this.parameterName = parameterName;
    }

    public String getContentType() {
        return contentType;
    }

    public void setContentType(String contentType) {
        this.contentType = contentType;
    }
    private String Opertype=null;
    public void setOper(String Opertype){
        this.Opertype=Opertype;
    }
    public boolean post(String path, Map<String, String> params)
            throws Exception {
        final String BOUNDARY = "--------------7da2137580612"; // 数据分隔线
        final String endline = "--" + BOUNDARY + "--\r\n";// 数据结束标志

        int fileDataLength = 0;
        // 得到文件类型数据的总长度
        StringBuilder fileExplain = new StringBuilder();
        fileExplain.append("--");
        fileExplain.append(BOUNDARY);
        fileExplain.append("\r\n");
        fileExplain.append("Content-Disposition: form-data;name=\""
                + getParameterName() + "\";filename=\"" + getFilname()
                + "\"\r\n");
        fileExplain.append("Content-Type: " + getContentType() + "\r\n\r\n");
        fileExplain.append("\r\n");
        fileDataLength += fileExplain.length();
        if (getInStream() != null) {
            fileDataLength += getFile().length();
        } else {
            fileDataLength += getData().length;
        }

        StringBuilder textEntity = new StringBuilder();
        for (Map.Entry<String, String> entry : params.entrySet()) {//构造文本类型参数的实体数据
            textEntity.append("--");
            textEntity.append(BOUNDARY);
            textEntity.append("\r\n");
            textEntity.append("Content-Disposition: form-data; name=\""
                    +  entry.getKey() + "\"\r\n\r\n");
            textEntity.append(entry.getValue());
            textEntity.append("\r\n");
        }
        Log.v(LOGKEY, textEntity.toString());
        // 计算传输给服务器的实体数据总长度
        int dataLength = textEntity.toString().getBytes().length
                + fileDataLength + endline.getBytes().length;

        URL url = new URL(path);
        Log.v(LOGKEY, url.toString());
        int port = url.getPort() == -1 ? 80 : url.getPort();
        Socket socket = new Socket(InetAddress.getByName(url.getHost()), port);
        OutputStream outStream = socket.getOutputStream();
        // 下面完成HTTP请求头的发送
        String requestmethod = "POST " + url.getPath()+"?"+Opertype + " HTTP/1.1\r\n";
        Log.v(LOGKEY, requestmethod);
        outStream.write(requestmethod.getBytes());
        String accept = "Accept: image/gif, image/jpeg, image/pjpeg, image/pjpeg, application/x-shockwave-flash, application/xaml+xml, application/vnd.ms-xpsdocument, application/x-ms-xbap, application/x-ms-application, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*\r\n";
        outStream.write(accept.getBytes());
        String language = "Accept-Language: zh-CN\r\n";
        outStream.write(language.getBytes());
        String contenttype = "Content-Type: multipart/form-data; boundary="
                + BOUNDARY + "\r\n";
        outStream.write(contenttype.getBytes());
        String contentlength = "Content-Length: " + dataLength + "\r\n";
        outStream.write(contentlength.getBytes());
        String alive = "Connection: Keep-Alive\r\n";
        outStream.write(alive.getBytes());
        String host = "Host: " + url.getHost() + ":" + port + "\r\n";
        outStream.write(host.getBytes());
        // 写完HTTP请求头后根据HTTP协议再写一个回车换行
        outStream.write("\r\n".getBytes());
        // 把所有文本类型的实体数据发送出来
        outStream.write(textEntity.toString().getBytes());
        // 把所有文件类型的实体数据发送出来

        StringBuilder fileEntity = new StringBuilder();
        fileEntity.append("--");
        fileEntity.append(BOUNDARY);
        fileEntity.append("\r\n");
        fileEntity.append("Content-Disposition: form-data;name=\""
                + getParameterName() + "\";filename=\"" + getFilname()
                + "\"\r\n");
        fileEntity.append("Content-Type: " + getContentType() + "\r\n\r\n");
        outStream.write(fileEntity.toString().getBytes());
        if (getInStream() != null) {
            byte[] buffer = new byte[1024];
            int len = 0;
            while ((len = getInStream().read(buffer, 0, 1024)) != -1) {
                outStream.write(buffer, 0, len);
            }
            getInStream().close();
        } else {
            outStream.write(getData(), 0, getData().length);
        }
        outStream.write("\r\n".getBytes());

        // 下面发送数据结束标志，表示数据已经结束
        outStream.write(endline.getBytes());

        BufferedReader reader = new  BufferedReader(new InputStreamReader(socket.getInputStream()));
        if (reader.readLine().indexOf("200") == -1) {// 读取web服务器返回的数据，判断请求码是否为200，如果不是200，代表请求失败
            return false;
        }

        outStream.flush();
        outStream.close();
        reader.close();
        socket.close();
        return true;
    }
}
//测试代码
File iconFile = new File("file路径");
String url="htttp://192.168.1.101:8080/APP/initServlet";
Map<String, String> map = new HashMap<String, String>();//表单内容
map.put("name","blog");

if (iconFile != null) {
                    FormFile uploadfile = new FormFile(iconFile.getName(),
                            iconFile, "iconfile", "image/jpeg");
                    uploadfile.setOper("action=insertusr");//在url上插入?action=insertusr
                    try {
                        boolean isok = uploadfile.post(url, map);
                    } catch (Exception e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    }