控制臺(tái)報(bào)錯(cuò)：org.apache.ibatis.executor.ExecutorException: A query was run and no Result Maps were found for the Mapped Statement 'com.spbt.mapper.EmpeeMapper.selectName'. It's likely that neither a Result Type nor a Result Map was specified.
這個(gè)異常是在mapper文件的
所以檢查自己的mapper文件：
select username from empee where username=#{username}
select password from empee where username=#{username}
可以發(fā)現(xiàn)我的
解決：將parameterType修改為resultType
登錄成功：
二、頁面沒有顯示傳遞的消息
這是LoginController的實(shí)現(xiàn)登錄代碼
RequestMapping("/empee/login")
public String login(@RequestParam("username") String username,
@RequestParam("password") String password,
Model model, HttpSession session){
if (empeeMapper.selectName(username)!=null){
//用戶名存在
if (empeeMapper.selectPwdByName(username).equals(password)){
//密碼也正確
session.setAttribute("loginEmpee",username);
return "redirect:/main.html";
}else {
model.addAttribute("msg","密碼錯(cuò)誤");
return "redirect:/index";
}
}else {
model.addAttribute("msg","用戶名不存在，請(qǐng)注冊(cè)");
return "redirect:/index";
}
}
控制臺(tái)報(bào)錯(cuò)：org.apache.ibatis.binding.BindingException: Mapper method 'com.spbt.mapper.EmpeeMapper.insertEmpee' has an unsupported return type: class com.spbt.pojo.Empee
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