service/src/main/java/com/free/controller/QuestionController.java

package com.free.controller;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.validation.Valid;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.type.CollectionType;
import com.free.config.CustomizationException;
import com.free.config.ExceptionEnum;
import com.free.config.ResponseFormat;
import com.free.entity.Question;
import com.free.service.QuestionService;
import com.free.utils.Utils;

import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;

@RestController
@RequestMapping("/question")
@Api(tags = "问题")
public class QuestionController {
  @Autowired
  private QuestionService service;

  /** 创建数据 */
  @ApiOperation("创建数据")
  @PostMapping("")
  public Object save(@RequestBody @Valid Question data) {
    this.service.save(data);
    QueryWrapper qw = new QueryWrapper<>();
    qw.eq("id", data.getId());
    Map returnData = this.service.getMap(qw);
    return ResponseFormat.success(returnData);
    // return ResponseFormat.success();
  }

  /** 修改数据 */
  @ApiOperation("修改数据")
  @PostMapping("/{id}")
  public Object update(@PathVariable String id, @RequestBody Question data) {
    QueryWrapper qw = new QueryWrapper<>();
    qw.eq("id", id);
    Long num = this.service.count(qw);
    if (num <= 0) {
      throw new CustomizationException(ExceptionEnum.NOT_FOUND);
    }
    data.setId(id);
    this.service.updateById(data);
    Object newData = this.service.getById(id);
    return ResponseFormat.success(newData);
  }

  /** 列表查询 */
  @ApiOperation("查询数据列表")
  @SuppressWarnings({ "unchecked" })
  @GetMapping()
  public Object list(@RequestParam Map<String, Object> allParams) {
    Long skip = null, limit = null;
    Map map = new HashMap();
    QueryWrapper qw = new QueryWrapper<>();
    qw.select("id", "title", "platform", "is_use");
    /** 参数处理处理 */
    for (String key : allParams.keySet()) {
      Object value = allParams.get(key);
      if (key.equals("skip")) {
        skip = Long.valueOf(String.valueOf(value));
      } else if (key.equals("limit")) {
        limit = Long.valueOf(String.valueOf(value));
      } else {
        if (key.equals("title") || key.equals("platform")) {
          qw.like(key, value);
        } else {
          // 其他为查询条件
          qw.eq(key, value);
        }
      }
    }
    /** 分页处理 */
    if (null != skip && null != limit) {
      IPage page = new Page<>(skip, limit);
      IPage pageResult = service.page(page, qw);
      List data = pageResult.getRecords();
      long total = pageResult.getTotal();
      map.put("data", data);
      map.put("total", total);
    } else {
      List list = service.list(qw);
      map.put("data", list);
    }
    return ResponseFormat.success(map);
  }

  /** 根据id查询 */
  @ApiOperation("查询数据")
  @GetMapping("/{id}")
  public Object fetch(@PathVariable String id) {
    Object newData = service.getById(id);
    return ResponseFormat.success(newData);
  }

  /** 根据id删除数据 */
  @ApiOperation("删除数据")
  @DeleteMapping("/{id}")
  public Object delete(@PathVariable String id) {
    QueryWrapper qw = new QueryWrapper<>();
    qw.eq("id", id);
    Long num = service.count(qw);
    if (num <= 0) {
      throw new CustomizationException(ExceptionEnum.NOT_FOUND);
    }
    service.removeById(id);
    return ResponseFormat.success();
  }
  @ApiOperation("初始化问题")
  @PostMapping("/initData")
  public Object initData() throws JsonProcessingException {
    String filePath = "db/question.json";
    ObjectMapper mapper = new ObjectMapper();
    String str = Utils.readJsonFile(filePath);
    CollectionType javaType = mapper.getTypeFactory().constructCollectionType(List.class, Map.class);
    List<Map> list = mapper.readValue(str, javaType);
    this.service.initData(list);
    return ResponseFormat.success();
  }
}