文件上传服务端示例代码

移动端请求

summer.upload({
 fileURL : src, //需要上传的文件路径
 type : "image/jpeg", //上传文件的类型 例：图片为"image/jpeg"
   params : {}, //上传参数
   SERVER : "http://ip:port/test/upload/";//服务器地址
   }, function(ret){
 alert("上传成功" + JSON.stringify(ret));
 } , function(err){
alert("失败" + JSON.stingify(err));
  } );

文件上传服务端示例代码

将以下代码，导出jar包，放到webapp下
github下载

java示例代码

package com.yonyou.example;
import com.yonyou.uap.um.context.util.UmContextUtil;
import com.yonyou.uap.um.controller.UmControllerException;
import com.yonyou.uap.um.json.JSONTool;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import nc.vo.jcom.lang.StringUtil;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
public class UploadServlet extends HttpServlet
{
  private static final long serialVersionUID = 5009692626436714447L;
  protected void doGet(HttpServletRequest req, HttpServletResponse resp)
    throws ServletException, IOException
  {
    doPost(req, resp);
  }
  protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException
  {
    String user = UmContextUtil.handleNULLStr(req.getParameter("user"));
    user = new String(user.getBytes("ISO-8859-1"), "utf-8");
    String appid = UmContextUtil.handleNULLStr(req.getParameter("appid"));
    appid = new String(appid.getBytes("ISO-8859-1"), "utf-8");
    String token = UmContextUtil.handleNULLStr(req.getParameter("token"));
    appid = new String(token.getBytes("ISO-8859-1"), "utf-8");
    String devid = UmContextUtil.handleNULLStr(req.getParameter("devid"));
    appid = new String(devid.getBytes("ISO-8859-1"), "utf-8");
    InputStream is = req.getInputStream();
    String retStr = "{"code":"0","msg":"false"}";
    if ((req.getContentLength() > 0) && (req.getContentType().contains("multipart")) && (is != null))
    {
      DiskFileItemFactory factory = new DiskFileItemFactory();
      factory.setSizeThreshold(4194304);
      ServletFileUpload upload = new ServletFileUpload(factory);
      List fileList = null;
      try
      {
        fileList = upload.parseRequest(req);
        String realPath = req.getServletContext().getRealPath("UPLOAD_FILES/");
        Map filePathMap = uploadFile(realPath, user, appid, fileList);
        if ((filePathMap == null) || (filePathMap.isEmpty()))
          break label360;
        String contextPath = req.getServletContext().getContextPath();
        String urlpath = contextPath + "/UPLOAD_FILES/" + filePathMap.get("filename");
        StringBuffer url = req.getRequestURL();
        Map map = filePathMap;
        map.put("code", "1");
        map.put("msg", "true");
        map.put("urlpath", urlpath);
        retStr = JSONTool.mapToJson(map, 4);
      }
      catch (Exception e)
      {
        throw new UmControllerException(e);
      }
    }
    label360: String contentType = "application/json;charset=UTF-8";
    resp.setContentType(contentType);
    resp.setHeader("Pragma", "No-cache");
    byte[] b = retStr.toString().getBytes("UTF-8");
    OutputStream out = resp.getOutputStream();
    out.write(b);
  }
  public Map<String, Object> uploadFile(String dir, String user, String appid, List<FileItem> listFile)
  {
    Map result = new HashMap();
    if ((listFile == null) || (listFile.size() == 0))
      return null;
    try
    {
      FileItem item;
      for (Iterator localIterator = listFile.iterator(); localIterator.hasNext(); ) { item = (FileItem)localIterator.next();
        String name = item.getFieldName();
        if (!(item.isFormField()))
        {
          break label127;
        }
        String value = item.getString();
        if ((StringUtil.isEmpty(user)) && ("user".equals(name.trim()))) {
          user = value;
          break label127: } if ((!(StringUtil.isEmpty(appid))) || (!("appid".equals(name.trim())))) break label127;
        label127: appid = value;
      }
      for (localIterator = listFile.iterator(); localIterator.hasNext(); ) { item = (FileItem)localIterator.next();
        if (item.isFormField())
          break label216;
        String fileName = item.getName().trim();
        File saveFile = new File(dir, fileName);
        item.write(saveFile);
        label216: result.put("filename", fileName);
      }
    }
    catch (Exception e)
    {
      e.printStackTrace();
    }
    return result;
  }
}