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<code>code</code>&#x3001;<code>msg</code> &#x4E24;&#x4E2A;&#x5B57;&#x6BB5;&#x6765;&#x8FDB;&#x884C;&#x4E1A;&#x52A1;&#x5904;&#x7406;&#x7ED3;&#x679C;&#x63CF;&#x8FF0;&#xFF0C;&#x5E76;&#x4E14;&#x5E0C;&#x671B;&#x80FD;&#x591F;&#x4EE5;json&#x54CD;&#x5E94;&#x4F53;&#x6765;&#x8FDB;&#x884C;&#x54CD;&#x5E94;&#x3002;</p>
<h2 id="&#x4E1A;&#x52A1;&#x9519;&#x8BEF;&#x54CD;&#x5E94;&#x683C;&#x5F0F;">&#x4E1A;&#x52A1;&#x9519;&#x8BEF;&#x54CD;&#x5E94;&#x683C;&#x5F0F;</h2>
<ul>
<li><p>&#x4E1A;&#x52A1;&#x5904;&#x7406;&#x6B63;&#x5E38;</p>
<pre class="language-"><code class="lang-json">  <span class="token punctuation">{</span>
    <span class="token property">&quot;code&quot;</span><span class="token operator">:</span> <span class="token number">0</span><span class="token punctuation">,</span>
    <span class="token property">&quot;msg&quot;</span><span class="token operator">:</span> <span class="token string">&quot;successful&quot;</span><span class="token punctuation">,</span>
    <span class="token property">&quot;data&quot;</span><span class="token operator">:</span> <span class="token punctuation">{</span>
      ....
    <span class="token punctuation">}</span>
  <span class="token punctuation">}</span>
</code></pre>
</li>
<li><p>&#x4E1A;&#x52A1;&#x5904;&#x7406;&#x5F02;&#x5E38;</p>
<pre class="language-"><code class="lang-json">  <span class="token punctuation">{</span>
    <span class="token property">&quot;code&quot;</span><span class="token operator">:</span> <span class="token number">10001</span><span class="token punctuation">,</span>
    <span class="token property">&quot;msg&quot;</span><span class="token operator">:</span> <span class="token string">&quot;&#x53C2;&#x6570;&#x9519;&#x8BEF;&quot;</span>
  <span class="token punctuation">}</span>
</code></pre>
</li>
</ul>
<h2 id="user-api&#x4E4B;login">user api&#x4E4B;login</h2>
<p>&#x5728;&#x4E4B;&#x524D;&#xFF0C;&#x6211;&#x4EEC;&#x5728;&#x767B;&#x5F55;&#x903B;&#x8F91;&#x4E2D;&#x5904;&#x7406;&#x7528;&#x6237;&#x540D;&#x4E0D;&#x5B58;&#x5728;&#x65F6;&#xFF0C;&#x76F4;&#x63A5;&#x8FD4;&#x56DE;&#x6765;&#x4E00;&#x4E2A;error&#x3002;&#x6211;&#x4EEC;&#x6765;&#x767B;&#x5F55;&#x5E76;&#x4F20;&#x9012;&#x4E00;&#x4E2A;&#x4E0D;&#x5B58;&#x5728;&#x7684;&#x7528;&#x6237;&#x540D;&#x770B;&#x770B;&#x6548;&#x679C;&#x3002;</p>
<pre class="language-"><code class="lang-shell"><span class="token function">curl</span> -X POST <span class="token punctuation">\</span>
  http://127.0.0.1:8888/user/login <span class="token punctuation">\</span>
  -H <span class="token string">&apos;content-type: application/json&apos;</span> <span class="token punctuation">\</span>
  -d <span class="token string">&apos;{
    &quot;username&quot;:&quot;1&quot;,
    &quot;password&quot;:&quot;123456&quot;
}&apos;</span>
</code></pre>
<pre class="language-"><code class="lang-text">HTTP/1.1 400 Bad Request
Content-Type: text/plain; charset=utf-8
X-Content-Type-Options: nosniff
Date: Tue, 09 Feb 2021 06:38:42 GMT
Content-Length: 19

&#x7528;&#x6237;&#x540D;&#x4E0D;&#x5B58;&#x5728;
</code></pre>
<p>&#x63A5;&#x4E0B;&#x6765;&#x6211;&#x4EEC;&#x5C06;&#x5176;&#x4EE5;json&#x683C;&#x5F0F;&#x8FDB;&#x884C;&#x8FD4;&#x56DE;</p>
<h2 id="&#x81EA;&#x5B9A;&#x4E49;&#x9519;&#x8BEF;">&#x81EA;&#x5B9A;&#x4E49;&#x9519;&#x8BEF;</h2>
<ul>
<li><p>&#x9996;&#x5148;&#x5728;common&#x4E2D;&#x6DFB;&#x52A0;&#x4E00;&#x4E2A;<code>baseerror.go</code>&#x6587;&#x4EF6;&#xFF0C;&#x5E76;&#x586B;&#x5165;&#x4EE3;&#x7801;</p>
<pre class="language-"><code class="lang-shell">  $ <span class="token builtin class-name">cd</span> common
  $ <span class="token function">mkdir</span> errorx<span class="token operator">&amp;&amp;</span><span class="token builtin class-name">cd</span> errorx
  $ <span class="token function">vim</span> baseerror.go
</code></pre>
<pre class="language-"><code class="lang-goalng">  package errorx

  const defaultCode = 1001

  type CodeError struct {
      Code int    `json:&quot;code&quot;`
      Msg  string `json:&quot;msg&quot;`
  }

  type CodeErrorResponse struct {
      Code int    `json:&quot;code&quot;`
      Msg  string `json:&quot;msg&quot;`
  }

  func NewCodeError(code int, msg string) error {
      return &amp;CodeError{Code: code, Msg: msg}
  }

  func NewDefaultError(msg string) error {
      return NewCodeError(defaultCode, msg)
  }

  func (e *CodeError) Error() string {
      return e.Msg
  }

  func (e *CodeError) Data() *CodeErrorResponse {
      return &amp;CodeErrorResponse{
          Code: e.Code,
          Msg:  e.Msg,
      }
  }
</code></pre>
</li>
<li><p>&#x5C06;&#x767B;&#x5F55;&#x903B;&#x8F91;&#x4E2D;&#x9519;&#x8BEF;&#x7528;CodeError&#x81EA;&#x5B9A;&#x4E49;&#x9519;&#x8BEF;&#x66FF;&#x6362;</p>
<pre class="language-"><code class="lang-go">  <span class="token keyword">if</span> <span class="token function">len</span><span class="token punctuation">(</span>strings<span class="token punctuation">.</span><span class="token function">TrimSpace</span><span class="token punctuation">(</span>req<span class="token punctuation">.</span>Username<span class="token punctuation">)</span><span class="token punctuation">)</span> <span class="token operator">==</span> <span class="token number">0</span> <span class="token operator">||</span> <span class="token function">len</span><span class="token punctuation">(</span>strings<span class="token punctuation">.</span><span class="token function">TrimSpace</span><span class="token punctuation">(</span>req<span class="token punctuation">.</span>Password<span class="token punctuation">)</span><span class="token punctuation">)</span> <span class="token operator">==</span> <span class="token number">0</span> <span class="token punctuation">{</span>
          <span class="token keyword">return</span> <span class="token boolean">nil</span><span class="token punctuation">,</span> errorx<span class="token punctuation">.</span><span class="token function">NewDefaultError</span><span class="token punctuation">(</span><span class="token string">&quot;&#x53C2;&#x6570;&#x9519;&#x8BEF;&quot;</span><span class="token punctuation">)</span>
      <span class="token punctuation">}</span>

      userInfo<span class="token punctuation">,</span> err <span class="token operator">:=</span> l<span class="token punctuation">.</span>svcCtx<span class="token punctuation">.</span>UserModel<span class="token punctuation">.</span><span class="token function">FindOneByNumber</span><span class="token punctuation">(</span>req<span class="token punctuation">.</span>Username<span class="token punctuation">)</span>
      <span class="token keyword">switch</span> err <span class="token punctuation">{</span>
      <span class="token keyword">case</span> <span class="token boolean">nil</span><span class="token punctuation">:</span>
      <span class="token keyword">case</span> model<span class="token punctuation">.</span>ErrNotFound<span class="token punctuation">:</span>
          <span class="token keyword">return</span> <span class="token boolean">nil</span><span class="token punctuation">,</span> errorx<span class="token punctuation">.</span><span class="token function">NewDefaultError</span><span class="token punctuation">(</span><span class="token string">&quot;&#x7528;&#x6237;&#x540D;&#x4E0D;&#x5B58;&#x5728;&quot;</span><span class="token punctuation">)</span>
      <span class="token keyword">default</span><span class="token punctuation">:</span>
          <span class="token keyword">return</span> <span class="token boolean">nil</span><span class="token punctuation">,</span> err
      <span class="token punctuation">}</span>

      <span class="token keyword">if</span> userInfo<span class="token punctuation">.</span>Password <span class="token operator">!=</span> req<span class="token punctuation">.</span>Password <span class="token punctuation">{</span>
          <span class="token keyword">return</span> <span class="token boolean">nil</span><span class="token punctuation">,</span> errorx<span class="token punctuation">.</span><span class="token function">NewDefaultError</span><span class="token punctuation">(</span><span class="token string">&quot;&#x7528;&#x6237;&#x5BC6;&#x7801;&#x4E0D;&#x6B63;&#x786E;&quot;</span><span class="token punctuation">)</span>
      <span class="token punctuation">}</span>

      now <span class="token operator">:=</span> time<span class="token punctuation">.</span><span class="token function">Now</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">Unix</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
      accessExpire <span class="token operator">:=</span> l<span class="token punctuation">.</span>svcCtx<span class="token punctuation">.</span>Config<span class="token punctuation">.</span>Auth<span class="token punctuation">.</span>AccessExpire
      jwtToken<span class="token punctuation">,</span> err <span class="token operator">:=</span> l<span class="token punctuation">.</span><span class="token function">getJwtToken</span><span class="token punctuation">(</span>l<span class="token punctuation">.</span>svcCtx<span class="token punctuation">.</span>Config<span class="token punctuation">.</span>Auth<span class="token punctuation">.</span>AccessSecret<span class="token punctuation">,</span> now<span class="token punctuation">,</span> l<span class="token punctuation">.</span>svcCtx<span class="token punctuation">.</span>Config<span class="token punctuation">.</span>Auth<span class="token punctuation">.</span>AccessExpire<span class="token punctuation">,</span> userInfo<span class="token punctuation">.</span>Id<span class="token punctuation">)</span>
      <span class="token keyword">if</span> err <span class="token operator">!=</span> <span class="token boolean">nil</span> <span class="token punctuation">{</span>
          <span class="token keyword">return</span> <span class="token boolean">nil</span><span class="token punctuation">,</span> err
      <span class="token punctuation">}</span>

      <span class="token keyword">return</span> <span class="token operator">&amp;</span>types<span class="token punctuation">.</span>LoginReply<span class="token punctuation">{</span>
          Id<span class="token punctuation">:</span>           userInfo<span class="token punctuation">.</span>Id<span class="token punctuation">,</span>
          Name<span class="token punctuation">:</span>         userInfo<span class="token punctuation">.</span>Name<span class="token punctuation">,</span>
          Gender<span class="token punctuation">:</span>       userInfo<span class="token punctuation">.</span>Gender<span class="token punctuation">,</span>
          AccessToken<span class="token punctuation">:</span>  jwtToken<span class="token punctuation">,</span>
          AccessExpire<span class="token punctuation">:</span> now <span class="token operator">+</span> accessExpire<span class="token punctuation">,</span>
          RefreshAfter<span class="token punctuation">:</span> now <span class="token operator">+</span> accessExpire<span class="token operator">/</span><span class="token number">2</span><span class="token punctuation">,</span>
      <span class="token punctuation">}</span><span class="token punctuation">,</span> <span class="token boolean">nil</span>
</code></pre>
</li>
<li><p>&#x5F00;&#x542F;&#x81EA;&#x5B9A;&#x4E49;&#x9519;&#x8BEF;</p>
<pre class="language-"><code class="lang-shell">  $ <span class="token function">vim</span> service/user/cmd/api/user.go
</code></pre>
<pre class="language-"><code class="lang-go">  <span class="token keyword">func</span> <span class="token function">main</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
      flag<span class="token punctuation">.</span><span class="token function">Parse</span><span class="token punctuation">(</span><span class="token punctuation">)</span>

      <span class="token keyword">var</span> c config<span class="token punctuation">.</span>Config
      conf<span class="token punctuation">.</span><span class="token function">MustLoad</span><span class="token punctuation">(</span><span class="token operator">*</span>configFile<span class="token punctuation">,</span> <span class="token operator">&amp;</span>c<span class="token punctuation">)</span>

      ctx <span class="token operator">:=</span> svc<span class="token punctuation">.</span><span class="token function">NewServiceContext</span><span class="token punctuation">(</span>c<span class="token punctuation">)</span>
      server <span class="token operator">:=</span> rest<span class="token punctuation">.</span><span class="token function">MustNewServer</span><span class="token punctuation">(</span>c<span class="token punctuation">.</span>RestConf<span class="token punctuation">)</span>
      <span class="token keyword">defer</span> server<span class="token punctuation">.</span><span class="token function">Stop</span><span class="token punctuation">(</span><span class="token punctuation">)</span>

      handler<span class="token punctuation">.</span><span class="token function">RegisterHandlers</span><span class="token punctuation">(</span>server<span class="token punctuation">,</span> ctx<span class="token punctuation">)</span>

      <span class="token comment">// &#x81EA;&#x5B9A;&#x4E49;&#x9519;&#x8BEF;</span>
      httpx<span class="token punctuation">.</span><span class="token function">SetErrorHandler</span><span class="token punctuation">(</span><span class="token keyword">func</span><span class="token punctuation">(</span>err <span class="token builtin">error</span><span class="token punctuation">)</span> <span class="token punctuation">(</span><span class="token builtin">int</span><span class="token punctuation">,</span> <span class="token keyword">interface</span><span class="token punctuation">{</span><span class="token punctuation">}</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
          <span class="token keyword">switch</span> e <span class="token operator">:=</span> err<span class="token punctuation">.</span><span class="token punctuation">(</span><span class="token keyword">type</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
          <span class="token keyword">case</span> <span class="token operator">*</span>errorx<span class="token punctuation">.</span>CodeError<span class="token punctuation">:</span>
              <span class="token keyword">return</span> http<span class="token punctuation">.</span>StatusOK<span class="token punctuation">,</span> e<span class="token punctuation">.</span><span class="token function">Data</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
          <span class="token keyword">default</span><span class="token punctuation">:</span>
              <span class="token keyword">return</span> http<span class="token punctuation">.</span>StatusInternalServerError<span class="token punctuation">,</span> <span class="token boolean">nil</span>
          <span class="token punctuation">}</span>
      <span class="token punctuation">}</span><span class="token punctuation">)</span>

      fmt<span class="token punctuation">.</span><span class="token function">Printf</span><span class="token punctuation">(</span><span class="token string">&quot;Starting server at %s:%d...\n&quot;</span><span class="token punctuation">,</span> c<span class="token punctuation">.</span>Host<span class="token punctuation">,</span> c<span class="token punctuation">.</span>Port<span class="token punctuation">)</span>
      server<span class="token punctuation">.</span><span class="token function">Start</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
  <span class="token punctuation">}</span>
</code></pre>
</li>
<li><p>&#x91CD;&#x542F;&#x670D;&#x52A1;&#x9A8C;&#x8BC1;</p>
<pre class="language-"><code class="lang-shell">  $ <span class="token function">curl</span> -i -X POST <span class="token punctuation">\</span>
    http://127.0.0.1:8888/user/login <span class="token punctuation">\</span>
    -H <span class="token string">&apos;content-type: application/json&apos;</span> <span class="token punctuation">\</span>
    -d <span class="token string">&apos;{
          &quot;username&quot;:&quot;1&quot;,
          &quot;password&quot;:&quot;123456&quot;
  }&apos;</span>
</code></pre>
<pre class="language-"><code class="lang-text">  HTTP/1.1 200 OK
  Content-Type: application/json
  Date: Tue, 09 Feb 2021 06:47:29 GMT
  Content-Length: 40

  {&quot;code&quot;:1001,&quot;msg&quot;:&quot;&#x7528;&#x6237;&#x540D;&#x4E0D;&#x5B58;&#x5728;&quot;}
</code></pre>
</li>
</ul>
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