STRUCTS 2 UPLOAD

{LJ?Dragon}【标题】structs2 上传文件中文乱码问题

{LJ?Dragon}【Daily】

1.配置struts.xml文件

<?xml version="1.0"?>
<!DOCTYPE struts PUBLIC
	"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
	"http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
	<!-- 把编码模式改为utf-8,jsp里面记得也都改成utf-8 -->
	<!-- 上传文件名中文乱码问题就可以解决了。 -->
	<constant name="struts.i18n.encoding" value="utf-8" />
	<constant name="struts.multipart.maxSize" value="10485760" />
	//对上传文件的大小最大值做出限定，value的值是字节数
	<package name="default" extends="struts-default">
		<action name="upload" class="org.action.UploadAction">
			<result name="success">/uploadsuccess.jsp</result>
			<result name="input">/index.jsp</result>
			//如果上传文件大小大于要求，会自动判定为input
		</action>
	</package>
</struts>

JSP代码：

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@taglib uri="/struts-tags" prefix="s" %>
<html>
  <head>
    <title>struts2文件上传</title>
    <s:head/>
  </head>  

  <body>
        <div style="margin-top:140px;margin-left:38%;font-family:Microsoft YaHei;text-align:center">
          <s:form action="upload.action" method="post" enctype="multipart/form-data">
                <table>
                    <caption>文件上传</caption>
                    <tr>
                        <s:file name="upload" label="选择要上传的文件一"></s:file>
                    </tr>
                    <tr>
                        <s:file name="upload" label="选择要上传的文件二"></s:file>
                    </tr>
                    <tr>
                        <s:file name="upload" label="选择要上传的文件三"></s:file>
                    </tr>
                    <tr>
                        <s:file name="upload" label="选择要上传的文件四"></s:file>
                    </tr>
                    <tr>
                        <s:file name="upload" label="选择要上传的文件五"></s:file>
                    </tr>
                    <tr>
                        <s:submit value="上传"></s:submit>
                    </tr>
                </table>
         </s:form>
        </div>
  </body>
</html>

处理上传请求的Action

package org.action;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.List;
import com.opensymphony.xwork2.ActionSupport;
public class UploadAction extends ActionSupport{
    private List<File> upload;                        //上传的文件内容，由于是多个，用List集合
    private List<String> uploadFileName;              //文件名
    public String execute() throws Exception {
        if(upload!=null){
            for (int i=0; i < upload.size(); i++) {    //遍历，对每个文件进行读/写操作
                InputStream is=new FileInputStream(upload.get(i));
                OutputStream os=new FileOutputStream("d:\\file_upload\\"+getUploadFileName().get(i)); //文件的写入路径
                byte buffer[]=new byte[1024];
                int count=0;
                while((count=is.read(buffer))>0){
                    os.write(buffer,0,count);
                }
                os.close();
                is.close();
            }
        }
        return SUCCESS;
    }
    public List<File> getUpload() {
        return upload;
    }
    public void setUpload(List<File> upload) {
        this.upload=upload;
    }
    public List<String> getUploadFileName() {
        return uploadFileName;
    }
    public void setUploadFileName(List<String> uploadFileName) {
        this.uploadFileName=uploadFileName;
    }
}

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