<二>实现用户的增删改查接口

一、设计好权限之后，我们把所有表的增删改查的基础接口设计好，先把用户的接口实现了。使用我们以前练习Minimal Api 的框架作为api框架。

1、新增接口

• 代码如下

 //新增用户接口
            app.MapPost("/api/AddUser", (HttpContext ctx, AddInputDto dto) =>
            {
                using (var serviceScope = app.ServiceProvider.CreateScope()) 
                {
                    ValidationResult result = ctx.Request.Validate<AddInputDto>(dto);
                    if (!result.IsValid)
                    {
                        return new HttpResult<string>() { code = (int)HttpReturnType.ValidFalid, message = string.Join(",", result.Errors.Select(s => s.ErrorMessage).ToList()), data = " " };
                    }
                    //这里要使用serviceScope.ServiceProvider
                    AutoMapper.IMapper map = serviceScope.ServiceProvider.GetRequiredService<IMapper>();
                    sysUserRepository = serviceScope.ServiceProvider.GetRequiredService<ISysUserRepository>();
                    SysUser user = map.Map<SysUser>(dto);
                    if (user != null)
                    {
                        user.Id = Guid.NewGuid().ToString().Replace("_", "");
                        sysUserRepository.Insert<SysUser>(user);
                        return new HttpResult<string>() { code = (int)HttpReturnType.Success, message = "新增成功。", data = " " };
                    }
                    return new HttpResult<string>() { code = (int)HttpReturnType.Fail, message = "新增失败。", data = " " };
                }
            });

• 运行结果

2、查询接口

• 代码如下

//查询用户接口
            app.MapGet("/api/GetUser", () =>
            {
                using (var serviceScope = app.ServiceProvider.CreateScope())
                {       
                    //这里要使用serviceScope.ServiceProvider
                    AutoMapper.IMapper map = serviceScope.ServiceProvider.GetRequiredService<IMapper>();
                    sysUserRepository = serviceScope.ServiceProvider.GetRequiredService<ISysUserRepository>();
                    List<SysUser> user= sysUserRepository.IQueryable<SysUser>().ToList();
                    List<SysUserOutputDto> dto= map.Map<List<SysUserOutputDto>>(user);
                    return new HttpResult<List<SysUserOutputDto>>() { code = 200, message = "查询成功。",data= dto };
                }
            });

• 运行结果

3、修改接口

• 代码如下

//修改用户接口
            app.MapPost("/api/UpdateUser", (HttpContext ctx, UpdateInputDto dto) =>
            {
                using (var serviceScope = app.ServiceProvider.CreateScope())
                {
                    ValidationResult result = ctx.Request.Validate<UpdateInputDto>(dto);
                    if (!result.IsValid)
                    {
                        return new HttpResult<string>() { code = (int)HttpReturnType.ValidFalid, message = string.Join(",", result.Errors.Select(s => s.ErrorMessage).ToList()), data = " " };
                    }
                    //这里要使用serviceScope.ServiceProvider
                    AutoMapper.IMapper map = serviceScope.ServiceProvider.GetRequiredService<IMapper>();
                    sysUserRepository = serviceScope.ServiceProvider.GetRequiredService<ISysUserRepository>();
                    SysUser user = map.Map<SysUser>(dto);
                    if (user != null)
                    {
                        sysUserRepository.Update<SysUser>(user);
                        return new HttpResult<string>() { code = (int)HttpReturnType.Success, message = "更新成功。", data = " " };
                    }
                    return new HttpResult<string>() { code = (int)HttpReturnType.Fail, message = "更新失败。", data = " " };
                }
            });

• 运行如下

• 查看一下

4、删除接口

• 代码如下

app.MapDelete("/api/DeleteUser", (HttpContext ctx,[FromBody]DeleteInputDto dto) =>
            {
                using (var serviceScope = app.ServiceProvider.CreateScope())
                {
                    ValidationResult result = ctx.Request.Validate<DeleteInputDto>(dto);
                    if (!result.IsValid)
                    {
                        return new HttpResult<string>() { code = (int)HttpReturnType.ValidFalid, message = string.Join(",", result.Errors.Select(s => s.ErrorMessage).ToList()),data=" " };
                    }              
                    sysUserRepository = serviceScope.ServiceProvider.GetRequiredService<ISysUserRepository>();                 
                    Core.Entity.SysManageSetting.SysUser user = sysUserRepository.FindEntity<SysUser>(dto.Id);
                    if (user != null)
                    {
                        sysUserRepository.Delete<SysUser>(user);
                        return new HttpResult<string>() { code = (int)HttpReturnType.Success, message = "删除成功。", data = " " };
                    }
                    return new HttpResult<string>() { code = (int)HttpReturnType.Fail, message = "删除失败。", data = " " };
                }
            });

• 运行结果

• 查询结果，Test999的用户已经没有了