React-Native 全局捕获JS运行时错误代码

react-native / polyfills / error-guard.js

使用global.ErrorUtils.setGlobalHandler全局捕获错误以避免崩溃

if(!__DEV__){
  global.ErrorUtils.setGlobalHandler(async (e, isFatal) => {
      if (isFatal) {
          e.name //错误类型
          e.message //错误信息
          e.componentStack||e.stack //错误代码定位
      }
  }
}

补充：

• isFatal
  建议保留isFatal=true的判断，尽管目前都是true ^[1]

全局捕获未处理的Promise错误

react-native / Libraries / Promise.js

require('promise/setimmediate/rejection-tracking').enable({
    onUnhandled:(id, error = {})=>{
        console.log("全局捕获未处理的Promise错误",id,error)
        console.log(error.name)
        console.log(error.message)
        console.log(error.componentStack||error.stack)
    }
})

重启rn页面

• ios

  NativeModules.BridgeReloader.reload()
  

• android

  @ReactMethod
  public void reload() {
    Activity activity = getCurrentActivity();
    Intent intent = activity.getIntent();
    activity.finish();
    activity.startActivity(intent);
  }
  

上传钉钉机器人

• 第一步：添加自定义机器人

  
  
  添加自定义机器人.png

• 第二步：复制Webhook接口，自定义安全设置等

  
  
  image.png
• 第三步：捕获到错误后通过接口上传到钉钉消息群

  if(!__DEV__){
    fetch("https://oapi.dingtalk.com/robot/send?access_token=xxxxxxxx",{
           method:"POST",
           headers:{
               "Content-Type":"application/json"
           },
           body:JSON.stringify({
               "msgtype":"markdown",
               "markdown":{
                   "title":"前端代码报错",
                   "text":"# <font color=\'#dd0000\'>前端代码报错</font> @13011112222 \n - **时间**: "+new Date().toLocaleString()+" \n - **版本**: `"+getRestfulUrlVersion()+"` \n\n``` \n"+e.name+":\n"+e.message+"\n"+(e.componentStack||e.stack)+" \n```",
               }, "at":{"atMobiles":["13011112222"],"isAtAll":false}}),
       }).then(res=>{}).catch(err=>{})
  }
  

• 效果

  
  
  垃圾简书，吞评论，图片也不能上传

SourceMap模式

⚠️打包之后发现捕获的错误代码定位不全，比如像这种的⬇️，

Invariant Violation:
Invariant Violation: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object.

    in P
    in RCTView
    in ScrollableTabView
    in RCTView
    in u
    in Connect(u)
    in ReceiveFile
    in O
    in RCTView
    in w
    in RCTView
    in b
    in PanGestureHandler
    in ve
    in GestureHandlerRootView
    in Unknown
    in b
    in x
    in Connect(x)
    in y
    in RCTView
    in RCTView
    in RCTView
    in P
    in w
    in C
    in RCTView
    in RCTView
    in C
    in RCTView
    in V
    in C
    in Unknown
    in D
    in R
    in RCTView
    in c
    in o
    in x
    in RCTView
    in RCTView
    in f
    in o
    in RCTView
    in RCTView
    in c
    in RCTView
    in v
    in RCTView
    in RCTView
    in x 

是因为我们在打包jsbundle的时候没有开启sourceMap模式 --sourcemap-output ，代码被压缩了

相关jsbundle打包命令react-native bundle <flag>可详见 https://github.com/react-native-community/cli/blob/master/docs/commands.md#bundle

参考

• [1] https://github.com/facebook/react-native/blob/master/ReactCommon/cxxreact/NativeToJsBridge.cpp#L357
• [2] 更多补完文档请参阅https://github.com/React-Sextant/react-native-bridge-docs