struts2文件上传

jsp页面代码

<form id="bb" name="myform" action="" method="post"            enctype="multipart/form-data">            <input id="aa" type="hidden" name="id" value="" />            <table width="800" border="0" cellpadding="0" cellspacing="0"                align="center" id="td1">            </table>        </form>

js代码

function readyok(id) {    var infoPath = $("#knowledgeinfo").val();//文件保存路劲:    d:a\b\d\d.rar    //alert(infoPath);    /*$("#bb").attr("action",            "/Examination2.0/upload_uploadfile_hwh.action?filename="+infoPath+"&id=" + id);*/    //tomcat的url地址不允许有"\"字符    $("#bb").attr("action",            "/Examination2.0/upload_uploadfile.action?id="+id);    if (infoPath == "") {        $("#errorInfo").html("请选择您要上传的文件!");        $("#errorInfo").attr("class", "error");        return false;    }    var fileInfo = $("#knowledgeinfo").val();    var filetype = fileInfo.substring(fileInfo.lastIndexOf(".") + 1);    if (filetype != "rar" && filetype != "zip" && filetype != "RAR"            && filetype != "ZIP") {        $("#errorInfo").html("您上传的文件格式有误，请上传后缀名为.rar或.zip的文件！");        $("#errorInfo").attr("class", "error");        return false;    }    var fileName = fileInfo.substring(fileInfo.lastIndexOf("\\") + 1);    var reg = /^[a-zA-Z0-1][\w.]{1,30}$/;    if (!reg.test(fileName)) {        $("#errorInfo").html("您上传的文件的文件名有误，请将上传的文件的文件名改为英文！");        $("#errorInfo").attr("class", "error");        return false;    }    document.myform.submit();}   

action代码

package com.yc.webexam.actions;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;import java.io.UnsupportedEncodingException;import java.text.SimpleDateFormat;import java.util.Date;import java.util.List;import javax.annotation.Resource;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import javax.servlet.http.HttpSession;import org.apache.struts2.ServletActionContext;import org.apache.tomcat.util.http.fileupload.FileItem;import org.apache.tomcat.util.http.fileupload.FileUploadException;import org.apache.tomcat.util.http.fileupload.RequestContext;import org.apache.tomcat.util.http.fileupload.disk.DiskFileItemFactory;import org.apache.tomcat.util.http.fileupload.servlet.ServletFileUpload;import org.springframework.context.annotation.Scope;import com.opensymphony.xwork2.ActionSupport;import com.yc.biz.ADailyTalkBiz;@SuppressWarnings("serial")@Scope("prototype")public class UploadAction extends ActionSupport {    SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmm");    @Resource(name = "aDailyTalkBiz")    private ADailyTalkBiz aDailyTalkBiz;    HttpServletRequest request = ServletActionContext.getRequest();    HttpServletResponse response = ServletActionContext.getResponse();    private HttpSession mysession = request.getSession();    public void setServletResponse(HttpServletResponse response) {        response.setCharacterEncoding("utf-8");        response.setContentType("text/html; charset=utf-8");        this.response = response;    }    public void setServletRequest(HttpServletRequest request) {        try {            request.setCharacterEncoding("utf-8");            this.request = request;            this.mysession = this.request.getSession();        } catch (UnsupportedEncodingException e) {            e.printStackTrace();        }    }    // 封装上传文件域的属性    private File knowledgeinfo;    // 封装上传文件类型的属性    private String knowledgeinfoContentType;    // 封装上传文件名的属性    private String knowledgeinfoFileName;    // 接受依赖注入的属性    private String savePath;    /*public void uploadfile_hwh() throws FileUploadException{         DiskFileItemFactory factory = new DiskFileItemFactory();           factory.setSizeThreshold(1024*1024*80);           factory.setRepository(new File(request.getServletContext().getRealPath("WEB-INF/temp")));           //1.2获取上传文件的核心类           ServletFileUpload fileload = new ServletFileUpload(factory);           fileload.setHeaderEncoding("UTF-8");           fileload.setFileSizeMax(1024*1024*100);           fileload.setSizeMax(1024*1024*200);         List<FileItem> list = fileload.parseRequest((RequestContext) request);         for(FileItem item :list){              if(!item.isFormField()){//普通字段                   String realname = item.getName();                   System.out.println("realname======> "+realname);             }         }    }*/    public void uploadfile() {        String id = null; // 新技术编号        byte[] bt = null;        String fileName = null;        int result = 0;        id = request.getParameter("id");        FileOutputStream fos = null;        FileInputStream fis = null;        try {            // 建立文件输出流            String filetype = getKnowledgeinfoFileName().substring(getKnowledgeinfoFileName().lastIndexOf("."));            String filename = getKnowledgeinfoFileName().substring(getKnowledgeinfoFileName().lastIndexOf("\\") + 1,                    getKnowledgeinfoFileName().lastIndexOf(".")) + sdf.format(new Date()) + filetype;            String path=getSavePath() ;            //获取Tomact根路劲   C:\Users\Administrator\Desktop\apache-tomcat-8.0.44\webapps            for(int i=0;i<2;i++){                path=path.substring(0,path.lastIndexOf("\\"));                System.out.println(path);            }            path=path+"\\"+"upload";            String file = path + "\\" + filename;            fos = new FileOutputStream(file);            // 建立文件上传流            //TODO            fis = new FileInputStream(getKnowledgeinfo());            byte[] buffer = new byte[1024];            int len = 0;            while ((len = fis.read(buffer)) > 0) {                fos.write(buffer, 0, len);            }            fis = new FileInputStream(file);            bt = new byte[fis.available()];            fis.read(bt);            fis.close();            result = aDailyTalkBiz.uploadKnowledgeInfos(bt, Integer.parseInt(id), filename);        } catch (Exception e) {            e.printStackTrace();        } finally {            close(fos, fis);        }    }    /**     * 返回上传文件的保存位置     *      * @return     */    public String getSavePath() throws Exception {        return ServletActionContext.getServletContext().getRealPath(savePath);    }    public void setSavePath(String savePath) {        this.savePath = savePath;    }    public File getKnowledgeinfo() {        return knowledgeinfo;    }    public void setKnowledgeinfo(File knowledgeinfo) {        this.knowledgeinfo = knowledgeinfo;    }    public String getKnowledgeinfoContentType() {        return knowledgeinfoContentType;    }    public void setKnowledgeinfoContentType(String knowledgeinfoContentType) {        this.knowledgeinfoContentType = knowledgeinfoContentType;    }    public String getKnowledgeinfoFileName() {        return knowledgeinfoFileName;    }    public void setKnowledgeinfoFileName(String knowledgeinfoFileName) {        this.knowledgeinfoFileName = knowledgeinfoFileName;    }    private void close(FileOutputStream fos, FileInputStream fis) {        if (fis != null) {            try {                fis.close();            } catch (IOException e) {                System.out.println("FileInputStream关闭失败");                e.printStackTrace();            }        }        if (fos != null) {            try {                fos.close();            } catch (IOException e) {                System.out.println("FileOutputStream关闭失败");                e.printStackTrace();            }        }    }    public void setaDailyTalkBiz(ADailyTalkBiz aDailyTalkBiz) {        this.aDailyTalkBiz = aDailyTalkBiz;    }}