文件上传(记得关闭流)

标签：art   class   substr   doc   cat   output   loader   efi   tput   

form：

<basic name="smwd" label="导入" widget="FileUploader" referWidgets="param">
    <value name="destform">fwglAdd</value>
    <value name="action">upload</value>
    <value name="fileTypes">*.doc;*.docx</value>
    <value name="fileAmount">1</value>
</basic>

action：

try {
    Map<String, File> l = (Map) bus.getValue("smwd");
    if (l == null || l.isEmpty())
        return;
    for (String key : l.keySet()) {

        System.out.println(" file name is: " + l.keySet());

        File file = (File) l.get(key);
        FileInputStream in = new FileInputStream(file);
        String guid = java.util.UUID.randomUUID().toString().replaceAll("-", "").toUpperCase();
        String d = System.getProperty("file.separator");//代表一个"/"
        String path1 = String.valueOf(FileUpLoadAction.class.getResource(""));
        System.out.println(path1.substring(6, path1.length()));
        String os1 = System.getProperty("os.name");
        if(os1.toLowerCase().startsWith("win")){//判断是不是windows操作系统
            File writeFile = new File(path1.substring(6, path1.length()) + "upload" + d + guid + "_" + key);
            FileOutputStream os = new FileOutputStream(writeFile);
            byte[] b = new byte[1024];
            int i = 0;
            while ((i = in.read(b)) != -1) {
                os.write(b, 0, i);
            }
            os.flush();//很重要
            form.updateWidgetValue("path", writeFile);
            form.updateWidgetValue("smwdmc", key);
            in.close();//很重要
            os.close();//很重要
        }else{//如果是linux操作系统，路径前边要多加一个 "/"
            File writeFile = new File(d+path1.substring(6, path1.length()) + "upload" + d + guid + "_" + key);
            FileOutputStream os = new FileOutputStream(writeFile);
            byte[] b = new byte[1024];
            int i = 0;
            while ((i = in.read(b)) != -1) {
                os.write(b, 0, i);
            }
            os.flush();//很重要
            form.updateWidgetValue("path", writeFile);
            form.updateWidgetValue("smwdmc", key);
            in.close();//很重要
            os.close();//很重要
        }


    }

} catch (Exception e) {

    e.printStackTrace();

}

文件上传(记得关闭流)

标签：art   class   substr   doc   cat   output   loader   efi   tput   

原文地址：http://www.cnblogs.com/Allanniloprince/p/7389155.html