解决下面错误，springboot
package com.itheima.springbootquickstart.controller;
import com.itheima.springbootquickstart.pojo.Category;
import com.itheima.springbootquickstart.pojo.Result;
import com.itheima.springbootquickstart.service.CategoryService;
import org.springframework.beans.factory.annotation.Autowired;
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.RestController;
@RestController
@RequestMapping("/category")
public class CategoryController {
@Autowired
private CategoryService categoryService;
@PostMapping
public Result add(@RequestBody Category category){
categoryService.add(category);
return Result.success();
}
}
package com.itheima.springbootquickstart.service.impl;
import com.itheima.springbootquickstart.mapper.CategoryMapper;
import com.itheima.springbootquickstart.pojo.Category;
import com.itheima.springbootquickstart.service.CategoryService;
import com.itheima.springbootquickstart.utils.ThreadLocalUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.time.LocalDateTime;
import java.util.List;
import java.util.Map;
@Service
public class CategoryServiceImpl implements CategoryService {
@Autowired
private CategoryMapper categoryMapper;
@Override
public void add(Category category) {
//补充属性值
category.setCreateTime(LocalDateTime.now());
category.setUpdateTime(LocalDateTime.now());
Map<String,Object> map = ThreadLocalUtil.get();
Integer userId = (Integer) map.get("id");
category.setCreateUser(userId);
categoryMapper.add(category);
}
@Override
public List<Category> list() {
Map<String,Object> map = ThreadLocalUtil.get();
Integer userId = (Integer) map.get("id");
return categoryMapper.list(userId);
}
@Override
public Category findById(Integer id) {
Category c = categoryMapper.findById(id);
return c;
}
@Override
public void update(Category category) {
category.setUpdateTime(LocalDateTime.now());
categoryMapper.update(category);
}
@Override
public void deleteById(Integer id) {
categoryMapper.deleteById(id);
}
}
