Question

我正在将数值插入数据库，但我得到的是UIException，这是我的代码示例，

public void createTeacherInfo(HttpServletRequest request) {
            try{

                TeacherInfo teacherInfo= new TeacherInfo();
                request.getParameter("flowName");
                DateFormat df = new SimpleDateFormat("dd-mm-yyyy");

                String tId= request.getParameter("teacherId");
                teacherInfo.setTeahcerId(Integer.parseInt(tId));

                //teacherInfo.setTeahcerId(Integer.parseInt(request.getParameter("teacherId")));
                teacherInfo.setTeacherName(request.getParameter("teacherName"));
                /*teacherInfo.setDob(df.parse(request.getParameter("dob")));
                teacherInfo.setDoj(df.parse(request.getParameter("doj")));*/
                teacherInfo.setTeacherEducation(request.getParameter("education"));
                teacherInfo.setPreviousEmployeDetails(request.getParameter("prevdetails"));
                //teacherInfo.setYearOfExper(Integer.parseInt(request.getParameter("experience")));
                teacherInfo.setTeahcherPhoto(request.getParameter("photo"));
                teacherInfo.setTeacherEmail(request.getParameter("email"));
                System.out.println(tId);
                System.out.println("TeacherId");
                pupilInfoManagementBusinessService.createTeacherInfo(teacherInfo);

                }catch (BusinessException e) {
                    webLayerLogger.error(CommonUtils.getStackTrace(e));
                    throw new UIException(e,UIMessageHelper.getLocalValue("exception while Inserting data"));
                }
}

在读取所有值后，此方法将转到服务方法，这是服务类方法，

@Override
public void createTeacherInfo(TeacherInfo teacherInfo) throws BusinessException {
    try {
         pupilInfoManagementDataService.createTeacherInfo(teacherInfo);
    }catch (Exception e) {
        businessServiceLogger.error(CommonUtils.getStackTrace(e));
        throw new BusinessException(this.getClass(), e, e.getMessage());
    }

}

我的问题是值正在读取但不插入数据库。请帮助我。

Answer 1

我打赌html表单包含照片的文件上传。当表单包含文件上传时，request.getParameter将不再有效（值始终为null）。当您执行文件上载时，您必须使用Apache Commons File Upload库从请求中检索参数，或者您可以使用request.getPart（如果您使用的是最新版本的servlet容器）。

从jsp页面读取值后出现异常

1 个答案: