struts2 s:file标签使用及文件上传例子
struts.xml配置文件
image/bmp,image/png,image/gif,image/jpeg,image/jpg,application/msword,text/plain
2000000000
UploadAction.java上传处理类
public class UploadAction extends ActionSupport {
// 封装单个上传文件域的属性
private File upload;
// 封装单个上传文件类型的属性
private String uploadContentType;
// 封装单个上传文件名的属性
private String uploadFileName;
// 动态设置上传文件保存地址
private String savePath;
public String getSavePath() {
// return ServletActionContext.getRequest().getRealPath("");
String onload = "C:\report\cached\";
HttpServletRequest request = ServletActionContext.getRequest();
request.setAttribute("onload", onload);
// return ServletActionContext.getRequest().getContextPath();
return onload;
}
public void setSavePath(String savePath) {
this.savePath = savePath;
}
// 上传单个文件的文件类型的setter和getter方法
public void setUploadContentType(String uploadContentType) {
this.uploadContentType = uploadContentType;
}
public String getUploadContentType() {
return (this.uploadContentType);
}
// 上传单个文件的文件名的setter和getter方法
public void setUploadFileName(String uploadFileName) {
this.uploadFileName = uploadFileName;
}
public String getUploadFileName() {
return (this.uploadFileName);
}
public File getUpload() {
return upload;
}
public void setUpload(File upload) {
this.upload = upload;
// savePath = ServletActionContext .getRequest().getRealPath("");
}
// 上传单个文件
public String upload() {
try {
// 以服务器的文件保存地址和原文件名建立上传文件输出流
System.out.println(ServletActionContext
.getRequest().getRealPath("")
+ File.separator
+ "images"
+ File.separator
+ getUploadFileName()+"路径");
FileOutputStream fos = new FileOutputStream(ServletActionContext
.getRequest().getRealPath("")
+ File.separator
+ "images"
+ File.separator
+ getUploadFileName());
// 以上传文件建立一个文件上传流
FileInputStream fis = new FileInputStream(getUpload());
// 将上传文件的内容写入服务器
byte[] buffer = new byte[1024];
int len = 0;
while ((len = fis.read(buffer)) > 0) {
fos.write(buffer, 0, len);
}
} catch (Exception e) {
e.printStackTrace();
}
return SUCCESS;
}
}
result_file.jsp
文件路径:
文件为：
上传多个文件
fileuploads.jsp
struts.xml
image/bmp,image/png,image/gif,image/jpeg,image/pjpeg,image/jpg,application/msword,text/plain
UploadActions.java
public class UploadActions extends ActionSupport {
//封装多个上传文件域的属性
private List
// 封装多个上传文件类型的属性
private List
// 封装多个上传文件名的属性
private List
//动态设置上传文件保存地址
private String savePath;
public String getSavePath() {
System.out.println("getSavePath()!!!!!");
System.out.println(savePath+"++++++++++++++++++++++++++++++");
return savePath;
}
public void setSavePath(String savePath) {
System.out.println("setSavePath()!!!!!");
this.savePath = savePath;
// savePath = "E:\butone\struts2.2\WebRoot\images\"+getUploadFileName();
}
//上传多个文件对应文件内容的setter和getter方法
public List
return upload;
}
public void setUpload(List
System.out.println("---------------- setUpload(List
this.upload = upload;
}
// 上传多个文件的文件类型setter和getter方法
public List
return uploadContentType;
}
public void setUploadContentType(List
this.uploadContentType = uploadContentType;
}
// 上传多个文件的文件名的setter和getter方法
public List
return uploadFileName;
}
public void setUploadFileName(List
this.uploadFileName = uploadFileName;
}
public String upload() {
//savePath = "E:\butone\struts2.2\WebRoot\images\";
savePath = ServletActionContext.getRequest().getRealPath("");
System.out.println("upload()!!!!!");
//上传多个文件
List
// String ext ="";
FileOutputStream fos = null;
FileInputStream fis = null;
byte[] buffer = new byte[1024];
int len = 0;
Random rd = new Random();
System.out.println(files.size()+" ----------------");
System.out.println(getSavePath());
for (int i = 0; i < files.size(); i++) {
try {
//以服务器的文件保存地址和当前时间组合文件名建立上传文件输出流
// ext =uploadFileName.get(i).substring(uploadFileName.get(i).lastIndexOf('.'));
/* fos = new FileOutputStream(getSavePath()+ File.separator+
* DateFormatUtil.getCurrentCustomFormatDateTime(DateFormatUtil.DATE_TIME_FORMAT_14) +
* String.valueOf(rd.nextInt(1000))+ext);
*/
System.out.println(getSavePath()+"------------------------getsavepath!!!");
fos = new FileOutputStream(getSavePath() + File.separator
+ uploadFileName.get(i));
// 以上传文件建立一个文件上传流
fis = new FileInputStream(files.get(i));
// 将上传文件的内容写入服务器
len = 0;
while ((len = fis.read(buffer)) > 0) {
fos.write(buffer, 0, len);
}
} catch (Exception e) {
e.printStackTrace();
}
}
return SUCCESS;
}
}
fileuploadoutput.jsp
文件路径:
文件为：