用户地址管理---新增、设置默认地址、根据id查询所有地址、查询默认地址、查询指定用户的全部地址

导入用户地址簿相关功能代码

需求分析：

地址簿，指的是移动端消费者用户的地址信息，用户登录成功后可以维护自己的地址信息。同一个用户可以有多个地址信息，但是只能有一个默认地址。

用户的地址信息会存储在address_book，即地址簿表中。

package com.itheima.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
import com.itheima.common.BaseContext;
import com.itheima.common.R;
import com.itheima.entity.AddressBook;
import com.itheima.service.AddressBookService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

/**
 * 地址簿管理
 */
@Slf4j
@RestController
@RequestMapping("/addressBook")
public class AddressBookController {

    @Autowired
    private AddressBookService addressBookService;

    /**
     * 新增
     */
    @PostMapping
    public R<AddressBook> save(@RequestBody AddressBook addressBook){
        addressBook.setUserId(BaseContext.getCurrentId());
        log.info("addressBook:{}", addressBook);
        addressBookService.save(addressBook);
        return R.success(addressBook);
    }

    /**
     * 设置默认地址
     */
    @PutMapping("/default")
    public R<AddressBook> setDefault(@RequestBody AddressBook addressBook){
        log.info("addressBook:{}", addressBook);
        LambdaUpdateWrapper<AddressBook> wrapper = new LambdaUpdateWrapper<>();
        //通过用户id查询到用户保存的所有地址
        wrapper.eq(AddressBook::getUserId, BaseContext.getCurrentId());
        //将该用户的所有地址改为非默认
        wrapper.set(AddressBook::getIsDefault, 0);
        addressBookService.update(wrapper);
        //将传过来的addressBook的地址设为默认地址
        addressBook.setIsDefault(1);
        addressBookService.updateById(addressBook);
        return R.success(addressBook);

    }

    /**
     * 根据id查询地址
     * @param id
     * @return
     */
    @GetMapping("/{ID}")
    public R get(@PathVariable Long id){
        AddressBook addressBook = addressBookService.getById(id);
        if(addressBook!=null){
            return R.success(addressBook);
        }else {
            return R.error("没有找到该对象");
        }
    }

    /**
     * 查询默认地址
     * @return
     */
    @GetMapping("/default")
    public R<AddressBook> getDefault(){
        LambdaQueryWrapper<AddressBook> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(AddressBook::getUserId, BaseContext.getCurrentId());
        queryWrapper.eq(AddressBook::getIsDefault, 1);

        AddressBook addressBook = addressBookService.getOne(queryWrapper);
        if(addressBook!=null){
            return R.success(addressBook);
        }else {
            return R.error("没有找到该对象");
        }
    }

    /**
     * 查询指定用户的全部地址
     * @param addressBook
     * @return
     */
    @GetMapping("/list")
    public R<List<AddressBook>> list(AddressBook addressBook){
        addressBook.setUserId(BaseContext.getCurrentId());
        log.info("addressBook:{}", addressBook);

        //条件构造器
        LambdaQueryWrapper<AddressBook> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(addressBook.getUserId()!=null, AddressBook::getUserId, addressBook.getUserId());
        queryWrapper.orderByDesc(AddressBook::getUpdateTime);

        return R.success(addressBookService.list(queryWrapper));
    }

}