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問題是在Java中輸入文件值到達空值。沒有錯誤,其工作正常,但輸入文件的java變量爲空。來自輸入文件的值在java模型中爲null struts2
此代碼打印我在enviar()方法中放置的記錄器「value is:null」。
怎麼了?
編輯:新增公地文件上傳-1.2.1.jar和commons-IO-1.3.2.jar
不工作尚未
JSP:
<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>
<%@include file="../../ArchivosComunes/recursosComunes.inc" %>
<!DOCTYPE HTML>
<html>
<head>
<title>Imágenes</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"
</head>
<body>
<s:form action="subirFicheroAction" method="POST" enctype="multipart/form-data">
<s:text name='label'/>:<s:file name="uploadFichero" accept="application/pdf"/>
<s:submit key="send"/>
</s:form>
<s:if test='uploadFicheroFileName != null'>
<br>
uploadFicheroFileName : <s:property value="uploadFicheroFileName" />
<br>
uploadFicheroContentType : <s:property value="uploadFicheroContentType" />
</s:if>
</body>
</html>
我的行動:
public class ImagesPagoExpress extends ActionSupport{
static final Logger logger = Logger.getLogger(ImagesPagoExpress.class);
public String execute(){
return SUCCESS;
}
private File uploadFichero;
private String uploadFicheroFileName;
private String uploadFicheroContentType;
/** ACCIONES **/
public String inicio()
{
return INPUT;
}
public String enviar()
{
logger.info("Ps sí estoy en enviar "+this.uploadFichero);
if (uploadFichero == null) //entra aqui porque llega null
{
return INPUT;
}
else
{
logger.info("Llegó");
logger.info(uploadFicheroFileName);
return SUCCESS;
}
}
/** GETTERS Y SETTERS **/
public File getUploadFichero()
{
return uploadFichero;
}
public void setUploadFichero(File uploadFichero)
{
this.uploadFichero = uploadFichero;
}
public String getUploadFicheroFileName()
{
return uploadFicheroFileName;
}
public void setUploadFicheroFileName(String uploadFicheroFileName)
{
this.uploadFicheroFileName = uploadFicheroFileName;
}
public String getUploadFicheroContentType()
{
return uploadFicheroContentType;
}
public void setUploadFicheroContentType(String uploadFicheroContentType)
{
this.uploadFicheroContentType = uploadFicheroContentType;
}
}
struts.xml
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<constant name="struts.i18n.encoding" value="LATIN1" />
<package name="default" namespace="/" extends="struts-default">
<action name="subirFicheroAction" class="actions.atencion.ImagesPagoExpress" method="enviar">
<interceptor-ref name="defaultStack" />
<result name="input">/JSP/Atencion/ImagesPagoExpress.jsp</result>
<result name="success">/JSP/Atencion/ImagesPagoExpress.jsp</result>
</action>
</package>
</struts>
這個問題爲什麼用2種不同的語言寫成?你能把前兩段翻譯成英文嗎?或者,將其他句子翻譯成西班牙語,然後在西班牙語網站上提問:https://es.stackoverflow.com/。 – cybersam
因爲我需要所有我能得到的支持。也許有人知道答案,但不會說英語或viseversa – user2930137
哦,我明白了,它的好,我已經編輯它。無論如何,我需要幫助 – user2930137