swEng/BookEng.java

package com.tbook.Controller;

import com.tbook.entity.TBook;
import com.tbook.entity.TUser;
import com.tbook.mapper.TBookMapper;
import com.tbook.service.TBookService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.util.List;

@Controller
public class BookEng {

    @Autowired
    private TBookService tBookService;

    @RequestMapping("/admin")
    public String index(){
        return "head";
    }
    @RequestMapping("/user")
    public String userindex(){
        return "userhead";
    }
    @RequestMapping("/book")
    public String book(){
        return "index";
    }
    @RequestMapping("/userbook")
    public String userbook(){
        return "userbook";
    }
    @GetMapping("/book/all")
    @ResponseBody
    public List<TBook> bookall(){
        TBook book=new TBook();

        return tBookService.select(book);
    }

    @PostMapping("/book/add")
    @ResponseBody
    public String bookadd(HttpServletRequest request, @RequestBody TBook tBook){
        if(tBook.getBookid()!=null) {

            tBookService.updateByPrimaryKeySelective(tBook);
             return "修改成功";
        }else{

            tBookService.insertSelective(tBook);
            return "添加成功";
        }
    }
    @PostMapping("/book/del")
    @ResponseBody
    public String bookdel(HttpServletRequest request, @RequestBody TBook tBook){

            tBookService.deleteByPrimaryKey(tBook.getBookid());
            return "删除成功";

    }
}