I have implemented the function of uploading Struts2 files and adding a progress bar, but why can't I get the return value of Struts2? Guys, please help me check_html/css

I have implemented the function of uploading Struts2 files and adding a progress bar, but why can't I get the return value of Struts2? Guys, please help me check_html/css_WEB-ITnose

WBOY

Release： 2016-06-24 11:58:27

Original

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This is the interface before uploading:

This is the interface when the upload is completed:

I just don’t know why I can’t get the interface

This is jsp Code
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/ struts-tags" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme() "://" request.getServerName() ":" request .getServerPort() path "/";
%>

<script> var id=0; var i = 0; var i = 0; function addressAction(){ $.post( './upload/pro gress.action', function(data ; { SetProgress(data.state.rate); In("slow");// Loading completion prompt window.clearInterval(id); var num=data.state.rate/10; through "); /gray.gif' />"); var progress_id = "loading"; function SetProgress (progress) { if (progress) { $("#" progress_id " > div").css("width", String(progress) "%"); //Control #loading div width $("#" progress_id " > div").html(String(progress) "%"); //Display percentage } } function submitForm(){ if($("#f1").val()==""){ alert('上传文件为空!!!'); return ; } id=window.setInterval(addressAction,10); $("form:first").submit();/*提交第一个表单*/ } </script>

enctype="multipart/form-data" target="hidden_frame">
File:

上传进度条的action
public class FileProgressAction extends ActionSupport {
private State state;

public State getState() {
return state;
}

public void setState(State state) {
this.state = state;
}
@Override
public String execute() throws Exception {
HttpSession session = ServletActionContext.getRequest().getSession();
this.state = (State) session.getAttribute("state");
if(state==null){
System.out.println("action is null");
state = new State();
state.setCurrentItem(0);
}else{
Double a=Double.parseDouble(state.getReadedBytes() "");
Double b=Double.parseDouble(state.getTotalBytes() "");
double result=a/b*100;
state.setRate((int)result);
}
return SUCCESS;
}
}
上传完成的action 返回值就在这里
public class FileProgressUploadAction extends ActionSupport{
 private File file;
 private String fileFileName;
 private String fileContentType;
 private String flag="===============";

public String getFlag() {
return flag;
}

public void setFlag(String flag) {
this.flag = flag;
}

public File getFile() {
return file;
}

public void setFile(File file) {
this.file = file;
}


public String getFileFileName() {
return fileFileName;
}

public void setFileFileName(String fileFileName) {
this.fileFileName = fileFileName;
}

public String getFileContentType() {
return fileContentType;
}

public void setFileContentType(String fileContentType) {
this.fileContentType = fileContentType;
}

@Override
public String execute(){

 try {
 System.out.println("file:" file);
 InputStream is=new FileInputStream(file);
 String root=ServletActionContext.getRequest().getRealPath("/upload");
 System.out.println("root:" root);

 System.out.println("name:" this.fileFileName);
 System.out.println("type:" this.fileContentType);
 File destFile=new File(root,this.fileFileName);

 OutputStream os=new FileOutputStream(destFile);

 byte [] b=new byte[1024*1024*10];
 int length=0;
 while(true){
 length=is.read(b);
 if(length<0)
 break;
 os.write(b,0,length);
 }
 setFlag("SUCCESS");
 is.close();
 os.close();
 }catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
 }
 System.out.println("=====================");
 return SUCCESS;
 }
}

The post is quite long. I hope some kindhearted people can help me take a look. I’ve been thinking for a long time and haven’t found the reason.

Reply to the discussion (solution)

This is the struts.xml configuration file

/error.jsp

< ;!-- Respecify the request encapsulation class -->
name="requestParser" class="com.zjg.listtener .MyMultiPartRequest"
scope="default" optional="true" />