134 lines
3.4 KiB
Java
134 lines
3.4 KiB
Java
package com.muyu.controller;
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import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
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import com.baomidou.mybatisplus.core.metadata.IPage;
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import com.baomidou.mybatisplus.core.toolkit.StringUtils;
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import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
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import com.muyu.common.Result;
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import com.muyu.domain.User;
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import com.muyu.service.UserService;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.PostMapping;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RestController;
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import java.util.List;
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/**
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* com.muyu.controller 测试
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*
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*/
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@RestController
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@RequestMapping("/user")
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public class UserController {
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/**
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* 构造方法注入
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*/
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@Autowired
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UserService userService;
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/**
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* 保存数据
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*
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* @return
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*/
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@GetMapping("/save")
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public Result save() {
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User user = new User();
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user.setId(10);
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user.setUsername("miaolinlin");
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user.setPwd("121212");
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userService.save(user);
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return Result.success(user);
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}
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/**
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* 修改数据
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*
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* @param id
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* @return
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*/
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@GetMapping("/update")
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public Result update(Integer id) {
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User user = new User();
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user.setId(id);
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user.setPwd("1111111111");
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userService.updateById(user);
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return Result.success("{}");
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}
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@GetMapping("/list")
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public Result list() {
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// 返回所有
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List<User> list = userService.list();
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return Result.success(list);
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}
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@GetMapping("/listByContion")
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public Result listByContion() {
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/**
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* 条件查询， 通过QueryWrapper来实现查询的条件：
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* eq: 代表相等
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* like: 模糊匹配
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* orderBy: 排序
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* in, notin
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* 大于，小于，between等
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*/
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List<User> list = userService.list(new LambdaQueryWrapper<User>()
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// 查询年龄=11的
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.eq(User::getUsername, "miao")
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// 模糊匹配
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.like(User::getPwd, "%111%")
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// 排序，按照创建时间
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.orderByDesc(User::getCreateTime)
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);
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return Result.success(list);
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}
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/**
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* 根据id获取数据
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*
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* @param id
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* @return
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*/
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@GetMapping("/getById")
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public Result getById(Integer id) {
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User user = userService.getById(id);
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return Result.success(user);
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}
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/**
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* 删除数据
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*
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* @param id
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* @return
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*/
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@GetMapping("/delete")
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public Result delete(Integer id) {
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userService.removeById(id);
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return Result.success("success");
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}
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/**
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* 分页查询
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*
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* @param pageNum
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* @param pageSize
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* @param name
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* @return
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*/
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@GetMapping("/page")
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public Result page(int pageNum, int pageSize, String name) {
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IPage<User> page = new Page<>(pageNum, pageSize);
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IPage<User> page1 = userService.page(page, new LambdaQueryWrapper<User>()
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// 主要演示这里可以加条件。在name不为空的时候执行
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.like(StringUtils.isNotEmpty(name), User::getUsername, "%" + name + "%"));
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return Result.success(page1);
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}
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}
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