Struts2.0实现文件上传
1.struts2.0上传三个关键字段 上传文件名、上传文件类型以及上传文件的File对象,如果jsp前台页面代码如下:
? <s:file name="xxx" label="输入要上传的文件名" />
?则action中三个字段的set,get方法必须分别为 File getxxx,String getxxxContentType,String getxxxFileName,该命名规则可从FileUploadInterceptor拦截器下面部份代码可知:
??????????parameters.put(inputName, files);
??????????parameters.put(inputName + "ContentType", contentType);
??????????parameters.put(inputName + "FileName", fileName);
其中inputName就是<s:file>中的name.
?
2.struts2.0上传多个文件三个字段的set,get方法的配置如下(其中<s:file>中name为upload):
private java.util.List<File> uploads;?
private java.util.List<String> fileNames;?
private java.util.List<String> uploadContentTypes;?
public java.util.List<String> getUploadFileName()?
??{
??????? return fileNames;?
???}?
??public void setUploadFileName(java.util.List<String> fileNames)?
???{
??????? this.fileNames = fileNames;
??? }
??? public java.util.List<File> getUpload()
??? {
??????? return uploads;
??? }
??? public void setUpload(java.util.List<File> uploads)
??? {
??????? this.uploads = uploads;
??? }
??? public void setUploadContentType(java.util.List<String> contentTypes)
??? {
??????? this.uploadContentTypes = contentTypes;?
??? }
??? public java.util.List<String> getUploadContentType()
??? {
??????? return this.uploadContentTypes;
??? }
由上面代码可知:三个字段可任意取名称,但set,get方法必须按照文件拦截器中定义的规则.
