/**
* 添加一个学生信息
*
* @return
* @throws Exception
*/
public String addS() throws Exception {
init();
if (pictureUpload() != null) {
student.setImageUrl(pictureUpload());
}
personService.saveStudent(student);
request.setAttribute("SUCCESS", "添加学生成功");
return "addSuccess";
}
/**
* 对学生信息的修改，可以是学生本身或者管理员
*
* @return
* @throws Exception
*/
public String updateS() throws Exception {
init();
String studentId = request.getParameter("studentId"); // 从请求参数过来的是老师更改
if (studentId == null) {
studentId = request.getSession().getAttribute("USER_ID").toString(); // 从session获得的是学生更改的
}
Student student = personService.getStudent(studentId);
String imageUrl = student.getImageUrl();
if (imageUrl != null) {
oldPicturePath = imageUrl;
imageUrl = imageUrl.substring(imageUrl.lastIndexOf("\\") + 1);
String relativeUrl = "File/images/" + imageUrl;
student.setImageUrl(relativeUrl);
}
request.setAttribute("student", student);
return "updateSSuccess";
}
/**
* 处理学生信息的修改
*
* @return
* @throws Exception
*/
public String updateSDeal() throws Exception {
init();
if (pictureUpload() != null) {
student.setImageUrl(pictureUpload());
if (oldPicturePath != null) { // 设置了新的图片就删除原来的图片
File file = new File(oldPicturePath);
if (file.exists()) {
file.delete();
}
}
}
personService.updateStudent(student);
response.getWriter().write("<script type='text/javascript'> alert('修改学生信息成功')</script>");
response.flushBuffer();
response.getWriter().close();
return NONE;
}