这是一篇学习笔记. angular 5 正式版都快出了, 不过主要是性能升级.
我认为angular 4还是很适合企业的, 就像.net一样.
我用的是windows 10
安装工具:
git for windows: 官网很慢, 所以找一个镜像站下载: https://github.com/waylau/git-for-win, 淘宝镜像的速度还是蛮快的:
安装的时候, 建议选择这个, 会添加很多命令行工具:
nodejs: 去官网下载就行: https://nodejs.org/en/
正常安装即可. npm的版本不要低于5.0吧:
angular-cli, 官网: https://github.com/angular/angular-cli
代码语言：javascript复制npm install -g @angular/clivisual studio code: https://code.visualstudio.com/
and visual studio 2017 of course.
建立angular项目
进入命令行在某个地方执行命令:
代码语言：javascript复制ng new client-panel这就会建立一个client-panel文件夹, 里面是该项目的文件, 然后它会立即执行npm install命令(这里不要使用淘宝的cnpm进行安装, 有bug), 稍等一会就会结束.
使用vscode打开该目录, 然后在vscode里面打开terminal:
terminal默认的可能是powershell, 如果你感觉powershell有点慢的话, 可以换成bash(安装git时候带的)或者windows command line等.
第一次打开terminal的时候, vscode上方会提示你配置terminal, 这时就可以更换默认的terminal. 否则的话, 你可以点击菜单file-reference-settings, 自己选择一个terminal应用:
同样可以安装几个vscode的插件:
然后试运行一下项目, 在terminal执行 ng serve, 如果没问题的话, 大概是这样:
浏览器运行: http://localhost:4200
安装bootstrap4等:
安装bootstrap4, tether, jquery等:
代码语言：javascript复制npm install bootstrap@4.0.0-beta.2 tether jquery --save安装成功后, 打开 .angular-cli.json, 把相关的css和js添加进去:
然后在运行试试 ng serve, 刷新:
字体已经改变, bootstrap起作用了.
建立Components
建立dashboard:
terminal执行
代码语言：javascript复制ng g component components/dashboard执行成功后会生成4个文件:
并且会自动在app.module.ts里面声明:
建立其他 components:
代码语言：javascript复制ng g component components/clients
ng g component components/clientDetails
ng g component components/addClient
ng g component components/editClient
ng g component components/navbar
ng g component components/sidebar
ng g component components/login
ng g component components/register
ng g component components/settings
ng g component components/pageNotFound
建立Route路由
代码语言：javascript复制import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { RouterModule, Routes } from '@angular/router';
import { AppComponent } from './app.component';
import { DashboardComponent } from './components/dashboard/dashboard.component';
import { ClientsComponent } from './components/clients/clients.component';
import { ClientDetailsComponent } from './components/client-details/client-details.component';
import { AddClientComponent } from './components/add-client/add-client.component';
import { EditClientComponent } from './components/edit-client/edit-client.component';
import { NavbarComponent } from './components/navbar/navbar.component';
import { SidebarComponent } from './components/sidebar/sidebar.component';
import { LoginComponent } from './components/login/login.component';
import { RegisterComponent } from './components/register/register.component';
import { SettingsComponent } from './components/settings/settings.component';
import { PageNotFoundComponent } from './components/page-not-found/page-not-found.component';
const appRoutes: Routes = [
{ path: '', component: DashboardComponent },
{ path: 'register', component: RegisterComponent },
{ path: 'login', component: LoginComponent }
];
@NgModule({
declarations: [
AppComponent,
DashboardComponent,
ClientsComponent,
ClientDetailsComponent,
AddClientComponent,
EditClientComponent,
NavbarComponent,
SidebarComponent,
LoginComponent,
RegisterComponent,
SettingsComponent,
PageNotFoundComponent
],
imports: [
BrowserModule,
RouterModule.forRoot(appRoutes)
],
providers: [],
bootstrap: [AppComponent]
})
export class AppModule { }添加router-outlet:
打开app.component.html, 清空内容, 添加一个div(可以输入div.container然后按tab健):
代码语言：javascript复制<div class="container">
<router-outlet></router-outlet>
</div>现在刷新浏览器, 大约这样:
添加navbar:
修改navbar.component.html:
代码语言：javascript复制<nav class="navbar navbar-expand-md navbar-light bg-light">
<div class="container">
<a class="navbar-brand" href="#">Client Panel</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarsExampleDefault" aria-controls="navbarsExampleDefault"
aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarsExampleDefault">
<ul class="navbar-nav mr-auto">
<li class="nav-item">
<a class="nav-link" href="#" routerLink="/">Dashboard </a>
</li>
</ul>
<ul class="navbar-nav ml-auto">
<li class="nav-item">
<a class="nav-link" href="#" routerLink="/register">Register </a>
</li>
<li class="nav-item">
<a class="nav-link" href="#" routerLink="/login">Login </a>
</li>
</ul>
</div>
</div>
</nav>修改app.component.html:
代码语言：javascript复制<app-navbar></app-navbar>
<div class="container">
<router-outlet></router-outlet>
</div>运行:
建立Service
建立一个client.service:
代码语言：javascript复制ng g service services/client然后在app.module.ts添加引用:
代码语言：javascript复制// Services Imports
import { ClientService } from "./services/client.service";并添加在providers里:
代码语言：javascript复制 providers: [
ClientService
],前端先暂时到这, 现在开始搞后端 web api.
建立asp.net core 2.0 的 Web api项目
web api项目源码: https://github.com/solenovex/asp.net-core-2.0-web-api-boilerplate
项目列表如图:
AspNetIdentityAuthorizationServer是一个单独的authorization server, 这里暂时还没用到, 它的端口是5000, 默认不启动.
CoreApi.Infrastructure 里面有一些基类和接口, 还放了一个公共的工具类等.
CoreApi.Models就是 models/entities
CoreApi.DataContext 里面就是DbContext相关的
CoreApi.Repositories 里面是Repositories
CoreApi.Services 里面就是各种services
CoreApi.ViewModels 里面就是各种ViewModels或者叫Dtos
CoreApi.Web是web启动项目.
SharedSettings是横跨authorization server和 web api的一些公共设置.
上面说的这些都没什么用, 下面开始建立Client的api.
建立Client Model(或者叫Entity)
在CoreApi.Models建立文件夹Angular, 然后建立Client.cs:
代码语言：javascript复制using CoreApi.Infrastructure.Features.Common;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Metadata.Builders;
namespace CoreApi.Models.Angular
{
public class Client : EntityBase
{
public decimal Balance { get; set; }
public string Email { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
public string Phone { get; set; }
}
public class ClientConfiguration : EntityBaseConfiguration<Client>
{
public override void ConfigureDerived(EntityTypeBuilder<Client> builder)
{
builder.Property(x => x.Balance).HasColumnType("decimal(18,2)");
builder.Property(x => x.Email).IsRequired().HasMaxLength(100);
builder.Property(x => x.FirstName).IsRequired().HasMaxLength(50);
builder.Property(x => x.LastName).IsRequired().HasMaxLength(50);
builder.Property(x => x.Phone).HasMaxLength(50);
}
}
}其中父类EntityBase里面含有一些通用属性,Id, CreateUser, UpdateUser, CreateTime, UpdateTime, LastAction, 这些是我公司做项目必须的, 你们随意.
下面ClientConfiguration是针对Client的fluent api配置类. 他的父类EntityBaseConfiguration实现了EF的IEntityTypeConfiguration接口, 并在父类里面针对EntityBase那些属性使用fluent api做了限制:
代码语言：javascript复制namespace CoreApi.Infrastructure.Features.Common
{
public abstract class EntityBaseConfiguration<T> : IEntityTypeConfiguration<T> where T : EntityBase
{
public virtual void Configure(EntityTypeBuilder<T> builder)
{
builder.HasKey(e => e.Id);
builder.Property(x => x.CreateTime).IsRequired();
builder.Property(x => x.UpdateTime).IsRequired();
builder.Property(x => x.CreateUser).IsRequired().HasMaxLength(50);
builder.Property(x => x.UpdateUser).IsRequired().HasMaxLength(50);
builder.Property(x => x.LastAction).IsRequired().HasMaxLength(50);
ConfigureDerived(builder);
}
public abstract void ConfigureDerived(EntityTypeBuilder<T> b);
}
}弄完Model和它的配置之后, 就添加到DbContext里面. 打开CoreApi.DataContext的CoreContext, 添加Model和配置:
代码语言：javascript复制 protected override void OnModelCreating(ModelBuilder modelBuilder)
{
base.OnModelCreating(modelBuilder);
modelBuilder.HasDefaultSchema(AppSettings.DefaultSchema);
modelBuilder.ApplyConfiguration(new UploadedFileConfiguration());
modelBuilder.ApplyConfiguration(new ClientConfiguration());
} public DbSet<UploadedFile> UploadedFiles { get; set; }
public DbSet<Client> Clients { get; set; }然后建立ClientRepository
在CoreApi.Repositories里面建立Angular目录, 建立ClientRepository.cs:
代码语言：javascript复制namespace CoreApi.Repositories.Angular
{
public interface IClientRepository : IEntityBaseRepository<Client> { }
public class ClientRepository : EntityBaseRepository<Client>, IClientRepository
{
public ClientRepository(IUnitOfWork unitOfWork) : base(unitOfWork)
{
}
}
}图省事, 我把repository和它的interface放在一个文件了.
IEntityBaseRepository<T>定义了一些常用的方法:
代码语言：javascript复制namespace CoreApi.DataContext.Infrastructure
{
public interface IEntityBaseRepository<T> where T : class, IEntityBase, new()
{
IQueryable<T> All { get; }
IQueryable<T> AllIncluding(params Expression<Func<T, object>>[] includeProperties);
int Count();
Task<int> CountAsync();
T GetSingle(int id);
Task<T> GetSingleAsync(int id);
T GetSingle(Expression<Func<T, bool>> predicate);
Task<T> GetSingleAsync(Expression<Func<T, bool>> predicate);
T GetSingle(Expression<Func<T, bool>> predicate, params Expression<Func<T, object>>[] includeProperties);
Task<T> GetSingleAsync(Expression<Func<T, bool>> predicate, params Expression<Func<T, object>>[] includeProperties);
IQueryable<T> FindBy(Expression<Func<T, bool>> predicate);
void Add(T entity);
void Update(T entity);
void Delete(T entity);
void DeleteWhere(Expression<Func<T, bool>> predicate);
void AddRange(IEnumerable<T> entities);
void DeleteRange(IEnumerable<T> entities);
void Attach(T entity);
void AttachRange(IEnumerable<T> entities);
void Detach(T entity);
void DetachRange(IEnumerable<T> entities);
void AttachAsModified(T entity);
}
}EntityBaseRepository<T>是它的实现:
代码语言：javascript复制namespace CoreApi.DataContext.Infrastructure
{
public class EntityBaseRepository<T> : IEntityBaseRepository<T>
where T : class, IEntityBase, new()
{
#region Properties
protected CoreContext Context { get; }
public EntityBaseRepository(IUnitOfWork unitOfWork)
{
Context = unitOfWork as CoreContext;
}
#endregion
public virtual IQueryable<T> All => Context.Set<T>();
public virtual IQueryable<T> AllIncluding(params Expression<Func<T, object>>[] includeProperties)
{
IQueryable<T> query = Context.Set<T>();
foreach (var includeProperty in includeProperties)
{
query = query.Include(includeProperty);
}
return query;
}
public virtual int Count()
{
return Context.Set<T>().Count();
}
public async Task<int> CountAsync()
{
return await Context.Set<T>().CountAsync();
}
public T GetSingle(int id)
{
return Context.Set<T>().FirstOrDefault(x => x.Id == id);
}
public async Task<T> GetSingleAsync(int id)
{
return await Context.Set<T>().FirstOrDefaultAsync(x => x.Id == id);
}
public T GetSingle(Expression<Func<T, bool>> predicate)
{
return Context.Set<T>().FirstOrDefault(predicate);
}
public async Task<T> GetSingleAsync(Expression<Func<T, bool>> predicate)
{
return await Context.Set<T>().FirstOrDefaultAsync(predicate);
}
public T GetSingle(Expression<Func<T, bool>> predicate, params Expression<Func<T, object>>[] includeProperties)
{
IQueryable<T> query = Context.Set<T>();
foreach (var includeProperty in includeProperties)
{
query = query.Include(includeProperty);
}
return query.Where(predicate).FirstOrDefault();
}
public async Task<T> GetSingleAsync(Expression<Func<T, bool>> predicate, params Expression<Func<T, object>>[] includeProperties)
{
IQueryable<T> query = Context.Set<T>();
foreach (var includeProperty in includeProperties)
{
query = query.Include(includeProperty);
}
return await query.Where(predicate).FirstOrDefaultAsync();
}
public virtual IQueryable<T> FindBy(Expression<Func<T, bool>> predicate)
{
return Context.Set<T>().Where(predicate);
}
public virtual void Add(T entity)
{
Context.Set<T>().Add(entity);
}
public virtual void Update(T entity)
{
EntityEntry<T> dbEntityEntry = Context.Entry(entity);
dbEntityEntry.State = EntityState.Modified;
dbEntityEntry.Property(x => x.Id).IsModified = false;
dbEntityEntry.Property(x => x.CreateUser).IsModified = false;
dbEntityEntry.Property(x => x.CreateTime).IsModified = false;
}
public virtual void Delete(T entity)
{
Context.Set<T>().Remove(entity);
}
public virtual void AddRange(IEnumerable<T> entities)
{
Context.Set<T>().AddRange(entities);
}
public virtual void DeleteRange(IEnumerable<T> entities)
{
foreach (var entity in entities)
{
Context.Set<T>().Remove(entity);
}
}
public virtual void DeleteWhere(Expression<Func<T, bool>> predicate)
{
IEnumerable<T> entities = Context.Set<T>().Where(predicate);
foreach (var entity in entities)
{
Context.Entry<T>(entity).State = EntityState.Deleted;
}
}
public void Attach(T entity)
{
Context.Set<T>().Attach(entity);
}
public void AttachRange(IEnumerable<T> entities)
{
foreach (var entity in entities)
{
Attach(entity);
}
}
public void Detach(T entity)
{
Context.Entry<T>(entity).State = EntityState.Detached;
}
public void DetachRange(IEnumerable<T> entities)
{
foreach (var entity in entities)
{
Detach(entity);
}
}
public void AttachAsModified(T entity)
{
Attach(entity);
Update(entity);
}
}
}建立Client的ViewModels
在CoreApi.ViewModels建立Angular文件夹, 分别针对查询, 新增, 修改建立3个ViewModel(Dto):
ClientViewModel:
代码语言：javascript复制namespace CoreApi.ViewModels.Angular
{
public class ClientViewModel : EntityBase
{
public decimal Balance { get; set; }
public string Email { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
public string Phone { get; set; }
}
}ClientCreationViewModel:
代码语言：javascript复制namespace CoreApi.ViewModels.Angular
{
public class ClientCreationViewModel
{
public decimal Balance { get; set; }
[Required]
[MaxLength(100)]
public string Email { get; set; }
[Required]
[MaxLength(50)]
public string FirstName { get; set; }
[Required]
[MaxLength(50)]
public string LastName { get; set; }
[Required]
[MaxLength(50)]
public string Phone { get; set; }
}
}ClientModificationViewModel:
代码语言：javascript复制namespace CoreApi.ViewModels.Angular
{
public class ClientModificationViewModel
{
public decimal Balance { get; set; }
[Required]
[MaxLength(100)]
public string Email { get; set; }
[Required]
[MaxLength(50)]
public string FirstName { get; set; }
[Required]
[MaxLength(50)]
public string LastName { get; set; }
[Required]
[MaxLength(50)]
public string Phone { get; set; }
}
}配置AutoMapper
针对Client和它的Viewmodels, 分别从两个方向进行配置:
DomainToViewModelMappingProfile:
代码语言：javascript复制namespace CoreApi.Web.MyConfigurations
{
public class DomainToViewModelMappingProfile : Profile
{
public override string ProfileName => "DomainToViewModelMappings";
public DomainToViewModelMappingProfile()
{
CreateMap<UploadedFile, UploadedFileViewModel>();
CreateMap<Client, ClientViewModel>();
CreateMap<Client, ClientModificationViewModel>();
}
}
}ViewModelToDomainMappingProfile:
代码语言：javascript复制namespace CoreApi.Web.MyConfigurations
{
public class ViewModelToDomainMappingProfile : Profile
{
public override string ProfileName => "ViewModelToDomainMappings";
public ViewModelToDomainMappingProfile()
{
CreateMap<UploadedFileViewModel, UploadedFile>();
CreateMap<ClientViewModel, Client>();
CreateMap<ClientCreationViewModel, Client>();
CreateMap<ClientModificationViewModel, Client>();
}
}
}注册Repository的DI:
在web项目的StartUp.cs的ConfigureServices里面为ClientRepository注册DI:
代码语言：javascript复制services.AddScoped<IClientRepository, ClientRepository>();建立Controller
在controllers目录建立Angular/ClientController.cs:
代码语言：javascript复制namespace CoreApi.Web.Controllers.Angular
{
[Route("api/[controller]")]
public class ClientController : BaseController<ClientController>
{
private readonly IClientRepository _clientRepository;
public ClientController(ICoreService<ClientController> coreService,
IClientRepository clientRepository) : base(coreService)
{
_clientRepository = clientRepository;
}
[HttpGet]
public async Task<IActionResult> GetAll()
{
var items = await _clientRepository.All.ToListAsync();
var results = Mapper.Map<IEnumerable<ClientViewModel>>(items);
return Ok(results);
}
[HttpGet]
[Route("{id}", Name = "GetClient")]
public async Task<IActionResult> Get(int id)
{
var item = await _clientRepository.GetSingleAsync(id);
if (item == null)
{
return NotFound();
}
var result = Mapper.Map<ClientViewModel>(item);
return Ok(result);
}
[HttpPost]
public async Task<IActionResult> Post([FromBody] ClientCreationViewModel clientVm)
{
if (clientVm == null)
{
return BadRequest();
}
if (!ModelState.IsValid)
{
return BadRequest(ModelState);
}
var newItem = Mapper.Map<Client>(clientVm);
newItem.SetCreation(UserName);
_clientRepository.Add(newItem);
if (!await UnitOfWork.SaveAsync())
{
return StatusCode(500, "保存客户时出错");
}
var vm = Mapper.Map<ClientViewModel>(newItem);
return CreatedAtRoute("GetClient", new { id = vm.Id }, vm);
}
[HttpPut("{id}")]
public async Task<IActionResult> Put(int id, [FromBody] ClientModificationViewModel clientVm)
{
if (clientVm == null)
{
return BadRequest();
}
if (!ModelState.IsValid)
{
return BadRequest(ModelState);
}
var dbItem = await _clientRepository.GetSingleAsync(id);
if (dbItem == null)
{
return NotFound();
}
Mapper.Map(clientVm, dbItem);
dbItem.SetModification(UserName);
_clientRepository.Update(dbItem);
if (!await UnitOfWork.SaveAsync())
{
return StatusCode(500, "保存客户时出错");
}
return NoContent();
}
[HttpPatch("{id}")]
public async Task<IActionResult> Patch(int id, [FromBody] JsonPatchDocument<ClientModificationViewModel> patchDoc)
{
if (patchDoc == null)
{
return BadRequest();
}
var dbItem = await _clientRepository.GetSingleAsync(id);
if (dbItem == null)
{
return NotFound();
}
var toPatchVm = Mapper.Map<ClientModificationViewModel>(dbItem);
patchDoc.ApplyTo(toPatchVm, ModelState);
TryValidateModel(toPatchVm);
if (!ModelState.IsValid)
{
return BadRequest(ModelState);
}
Mapper.Map(toPatchVm, dbItem);
if (!await UnitOfWork.SaveAsync())
{
return StatusCode(500, "更新的时候出错");
}
return NoContent();
}
[HttpDelete("{id}")]
public async Task<IActionResult> Delete(int id)
{
var model = await _clientRepository.GetSingleAsync(id);
if (model == null)
{
return NotFound();
}
_clientRepository.Delete(model);
if (!await UnitOfWork.SaveAsync())
{
return StatusCode(500, "删除的时候出错");
}
return NoContent();
}
}
}首先, Controller继承了ControllerBase这个类, ControllerBase是自己写的类, 里面可以放置一些公用的方法或属性, 目前里面的东西都没用:
代码语言：javascript复制namespace CoreApi.Web.Controllers.Bases
{
public abstract class BaseController<T> : Controller
{
protected readonly IUnitOfWork UnitOfWork;
protected readonly ILogger<T> Logger;
protected readonly IFileProvider FileProvider;
protected readonly ICoreService<T> CoreService;
protected BaseController(ICoreService<T> coreService)
{
CoreService = coreService;
UnitOfWork = coreService.UnitOfWork;
Logger = coreService.Logger;
FileProvider = coreService.FileProvider;
}
#region Current Information
protected DateTime Now => DateTime.Now;
protected string UserName => User.Identity.Name ?? "Anonymous";
#endregion
}
}由于父类构造函数依赖的类太多了, 所以我建立了一个CoreService, 里面包含着这些依赖, 然后用一个变量就注入进去了, 这种写法不一定正确:
代码语言：javascript复制public interface ICoreService<out T> : IDisposable
{
IUnitOfWork UnitOfWork { get; }
ILogger<T> Logger { get; }
IFileProvider FileProvider { get; }
}Controller里面的方法应该都能看明白吧. 需要提一下的是UnitOfWork.
Unit Of Work
我才用的是UnitOfWork和Repository模式, 多个Repository挂起的数据库操作, 可以使用一个UnitOfWork一次性提交.
由于DBContext已经实现了UnitOfWork模式, 所以可以直接在Controller里面使用DbContext, 但是我还是做了一个接口 IUnitOfWork:
代码语言：javascript复制namespace CoreApi.DataContext.Infrastructure
{
public interface IUnitOfWork: IDisposable
{
int SaveChanges();
int SaveChanges(bool acceptAllChangesOnSuccess);
Task<int> SaveChangesAsync(bool acceptAllChangesOnSuccess, CancellationToken cancellationToken = default(CancellationToken));
Task<int> SaveChangesAsync(CancellationToken cancellationToken = default(CancellationToken));
bool Save();
bool Save(bool acceptAllChangesOnSuccess);
Task<bool> SaveAsync(bool acceptAllChangesOnSuccess, CancellationToken cancellationToken = default(CancellationToken));
Task<bool> SaveAsync(CancellationToken cancellationToken = default(CancellationToken));
}
}里面前4个方法就是DbContext内置的方法, 后面4个方法可有可无, 就是上面4个方法的简单变形.
看一下CoreContext:
代码语言：javascript复制namespace CoreApi.DataContext.Core
{
public class CoreContext : DbContext, IUnitOfWork
{
public CoreContext(DbContextOptions<CoreContext> options)
: base(options)
{
}
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
base.OnModelCreating(modelBuilder);
modelBuilder.HasDefaultSchema(AppSettings.DefaultSchema);
modelBuilder.ApplyConfiguration(new UploadedFileConfiguration());
modelBuilder.ApplyConfiguration(new ClientConfiguration());
}
public DbSet<UploadedFile> UploadedFiles { get; set; }
public DbSet<Client> Clients { get; set; }
public bool Save()
{
return SaveChanges() >= 0;
}
public bool Save(bool acceptAllChangesOnSuccess)
{
return SaveChanges(acceptAllChangesOnSuccess) >= 0;
}
public async Task<bool> SaveAsync(bool acceptAllChangesOnSuccess, CancellationToken cancellationToken = default(CancellationToken))
{
return await SaveChangesAsync(acceptAllChangesOnSuccess, cancellationToken) >= 0;
}
public async Task<bool> SaveAsync(CancellationToken cancellationToken = default(CancellationToken))
{
return await SaveChangesAsync(cancellationToken) >= 0;
}
}
}差不多了, 开始
迁移数据库
在Package Manager Console分别执行 Add-Migration XXX和 Update-database命令.
注意这个时候 解决方案的启动项目必须是Web项目, 如果设置了多个启动项目, 迁移命令会不太好用.
然后运行一下: 选择CoreApi.Web而不是IISExpress, 这样的话端口应该是 http://localhost:5001/api/values
到Swagger里简单测试下
然后进入swagger简单测试一下ClientController: http://localhost:5001/swagger/
先添加数据 POST:
先点击右侧, 然后会把数据的json模板复制到左边的框里, 然后修改值, 然后点击try It out, 结果如下:
然后两个Get, Delete, Put您都应该会测试.
这里试一下 Patch:
再查询一下, 应该没有什么问题.
先写到这, 明天就能差不多写完了吧.
