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前言

这部分主要是对用户端中地址簿的一些增删改查操作，业务逻辑比较简单，但是要注意一些细节，比如设置默认地址的时候，可以先把所以地址设置为非默认地址，再设置其中一个为默认地址（修改）。

一、产品原型

查询地址列表
新增地址
修改地址
删除地址
设置默认地址
查询默认地址

二、数据库设计

三、接口设计、代码实现

1. 新增地址

1、在AdressBookController中编写add方法新增地址

java"> @PostMapping@ApiOperation("新增地址")public Result add(@RequestBody AddressBook addressBook){addressBookService.addAddressBook(addressBook);return Result.success();}

2、在AdressBookService中定义addAddressBook方法，在AdressBookServiceImpl中实现方法

java">public void addAddressBook(AddressBook addressBook) {addressBook.setUserId(BaseContext.getCurrentId());addressBook.setIsDefault(0); addressBookMapper.addAddressBook(addressBook);
}

3、在addAddressMapper中定义addAddressBook方法，在addAddressMapper.xml文件中编写sql语句，实现新增地址

 <insert id="addAddressBook" useGeneratedKeys="true" keyProperty="id">insert into sky_take_out.address_book (user_id, consignee, sex, phone, province_code, province_name, city_code,city_name, district_code, district_name, detail, label,is_default)values(#{userId}, #{consignee}, #{sex}, #{phone}, #{provinceCode}, #{provinceName}, #{cityCode}, #{cityName}, #{districtCode},#{districtName}, #{detail}, #{label}, #{isDefault})</insert>

2. 查询登录用户所有地址

1、在AdressBookController中编写list方法查询地址

java"> @GetMapping("/list")@ApiOperation("查询登录用户所有地址")public Result<List<AddressBook>> list(){AddressBook addressBook = new AddressBook();addressBook.setUserId(BaseContext.getCurrentId());List<AddressBook> addressBooks = addressBookService.list(addressBook);return Result.success(addressBooks);}

2、在AdressBookService中定义addAddressBook方法，在AdressBookServiceImpl中实现方法

java">public List<AddressBook> list(AddressBook addressBook) { return addressBookMapper.list(addressBook);
}

3、在addAddressMapper中定义list方法根据条件查询地址，在addAddressMapper.xml文件中编写sql语句

 <select id="list" parameterType="AddressBook" resultType="AddressBook">select * from sky_take_out.address_book<where><if test="userId != null">and user_id = #{userId}</if><if test="phone != null">and phone = #{phone}</if><if test="isDefault != null">and is_default = #{isDefault}</if></where>
</select>

3. 查询默认地址

1、在AdressBookController中编写getDefault方法查询地址

java">@GetMapping("default")
@ApiOperation("查询默认地址")
public Result<AddressBook> getDefault() {//SQL:select * from address_book where user_id = ? and is_default = 1AddressBook addressBook = new AddressBook();addressBook.setIsDefault(1);addressBook.setUserId(BaseContext.getCurrentId());List<AddressBook> list = addressBookService.list(addressBook);if (list != null && list.size() == 1) {return Result.success(list.get(0));  //默认地址只会有一个}return Result.error("没有查询到默认地址");
}

2、list方法在第2部分查询登录用户所有地址已实现

4. 修改地址

1、在AdressBookController中编写update方法根据id修改地址

java">@PutMapping
@ApiOperation("根据id修改地址")
public Result update(@RequestBody AddressBook addressBook){addressBookService.update(addressBook);return Result.success();
}

2、在AdressBookService中定义update方法，在AdressBookServiceImpl中实现方法

java">public void update(AddressBook addressBook) {   addressBookMapper.update(addressBook);
}

3、在addAddressMapper中定义update方法根据id修改地址，在addAddressMapper.xml文件中编写sql语句

 <update id="update">update sky_take_out.address_book<set><if test="consignee != null">consignee = #{consignee},</if><if test="sex != null">sex = #{sex},</if><if test="phone != null">phone = #{phone},</if><if test="detail != null">detail = #{detail},</if><if test="label != null">label = #{label},</if><if test="isDefault != null">is_default = #{isDefault},</if></set>where id = #{id}</update>

5. 根据id删除地址

1、在AdressBookController中编写deleteById方法根据id删除地址

java">@DeleteMapping
@ApiOperation("根据id删除地址")
public Result deleteById(Long id){addressBookService.delete(id);return Result.success();
}

2、在AdressBookService中定义delete方法，在AdressBookServiceImpl中实现方法

java">public void delete(Long id) {addressBookMapper.delete(id);
}

3、在addAddressMapper中定义delete方法根据id删除地址

java">@Delete("delete from sky_take_out.address_book where id=#{id}")
void delete(Long id);

6. 根据id查询地址

1、在AdressBookController中编写getById方法根据id查询地址

java">@GetMapping("/{id}")
@ApiOperation("根据id查询地址")
public Result<AddressBook> getById(@PathVariable Long id){AddressBook addressBook = addressBookService.getById(id);return Result.success(addressBook);
}

2、在AdressBookService中定义getById方法，在AdressBookServiceImpl中实现方法

java">public AddressBook getById(Long id) {AddressBook addressBook = addressBookMapper.getById(id);return addressBook;
}

3、在addAddressMapper中定义delete方法根据id查询地址

java">@Select("select * from sky_take_out.address_book where id=#{id}")
AddressBook getById(Long id);

7. 设置默认地址

1、在AdressBookController中编写setDefault方法设置默认地址

java">@PutMapping("/default")
@ApiOperation("设置默认地址")
public Result setDefault(@RequestBody AddressBook addressBook){addressBookService.setDefault(addressBook);return Result.success();
}

2、在AdressBookService中定义getById方法，在AdressBookServiceImpl中实现方法

java">@Transactional
public void setDefault(AddressBook addressBook) {//1、将当前用户的所有地址修改为非默认地址 update address_book set is_default = ? where user_id = ?addressBook.setIsDefault(0);addressBook.setUserId(BaseContext.getCurrentId());addressBookMapper.updateIsDefaultByUserId(addressBook);//2、将当前地址改为默认地址 update address_book set is_default = ? where id = ?addressBook.setIsDefault(1);addressBookMapper.update(addressBook);
}

3、在addAddressMapper中定义updateIsDefaultByUserId方法将当前用户的所有地址修改为非默认地址，然后定义update方法将当前地址改为默认地址（修改地址已实现）

java">@Update("update sky_take_out.address_book set is_default = #{isDefault} where user_id = #{userId}")
void updateIsDefaultByUserId(AddressBook addressBook);

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