Simonejquery.fileupload使用例子java
的有关信息介绍如下：
开发的时候需要使用jquery.fileupload插件，那么如何在struts中使用呢
需要的css样式和js文件
jsp页面信息如下，整个页面信息
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8" import="java.io.*"%>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
content="initial-scale=1.0,user-scalable=no, minimum-scale=1,maximum-scale=1,width=device-width" name="viewport">
这里特别注意文件名称，容易出错的地方
后台处理上传图片的方法，使用的是struts2处理
对应前端的文件名name="file"
struts2已经处理了请求，我们之间用就可以了
public String saveattach() {
try {
BufferedImage bi = ImageIO.read(file);
if (bi == null) {
return "0";
}
} catch (IOException e) {
return "0";
}
String realpath = ServletActionContext.getServletContext().getRealPath("/images/");
if (!new File(realpath).exists()) {
new File(realpath).mkdir();
}
String[] typechoose = fileFileName.split("\\.");
int ichoose = typechoose.length;
String type = ichoose > 1 ? typechoose[ichoose - 1] : "";
if (type.toLowerCase().equals("jpg")
|| type.toLowerCase().equals("gif")
|| type.toLowerCase().equals("jpeg")
|| type.toLowerCase().equals("png")) {
SimpleDateFormat smat = new SimpleDateFormat("yyyyMMddHHmmss");
String newfilname = smat.format(new Date()) + "." + type;
String path = realpath + "/" + newfilname;
FileUtil.saveFile(path, file);
return "/images/touxiang/"+newfilname;
} else {
return "0";
}
}
其中saveFile方法代码如下
public static void saveFile(String savePath, File upload) {
try {
InputStream in = null;
OutputStream out = null;
in = new FileInputStream(upload);
out = new FileOutputStream(savePath);
int readed = 0;
byte[] buffer = new byte;
while ((readed = in.read(buffer, 0, 1024)) != -1) {
out.write(buffer, 0, readed);
}
out.flush();
out.close();
in.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
实现效果如下
