@Override
public String execute() throws Exception {
// TODO Auto-generated method stub
messageModel = new MessageModel();
SecurityAction securityAction = new SecurityAction();
if (!securityAction.checkTeacher()) {
return "login";
}
// 验证用户是否有下载文件的权限
try {
homeworkIdInteger = Integer.parseInt(homeworkId);
} catch (Exception e) {
// TODO: handle exception
messageModel.setData(
"系统提示",
"操作非法，你的ip：" + ServletActionContext.getRequest().getRemoteAddr() + "已被系统记录。",
"classInfo.action");
return "message";
}
Task task = null;
try {
task =
taskService.getTaskById(homeworkService.getHomeworkById(homeworkIdInteger).getTaskId());
} catch (Exception e) {
// TODO: handle exception
messageModel.setData(
"系统提示",
"您无权下载此文件，你的ip：" + ServletActionContext.getRequest().getRemoteAddr() + "已被系统记录。",
"classInfo.action");
return "message";
}
if (securityAction.getType() == 0) {
return SUCCESS;
}
if (task == null || !task.getUserId().equals(securityAction.getUserId())) {
messageModel.setData(
"系统提示",
"您无权下载此文件，你的ip：" + ServletActionContext.getRequest().getRemoteAddr() + "已被系统记录。",
"classInfo.action");
return "message";
}
return SUCCESS;
}
public InputStream getTargetFile() throws Exception {
String string = homeworkService.getHomeworkById(homeworkIdInteger).getPath();
filename = string.split("/")[string.split("/").length - 1];
return new FileInputStream(string);
}