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angular实现token过期续期策略

由
奈何col
-

参考：

Angular 使用 RxJS 实现过期 token 刷新并重试 – 格安 – 与其波流茅靡，不如从容燃烧 (gryen.com)

cordova-android编译报错

由
奈何col
-

FAILURE: Build failed with an exception.

  • What went wrong:
    Execution failed for task ‘:app:mergeReleaseResources’.

java.util.concurrent.ExecutionException: com.android.builder.internal.aapt.v2.Aapt2InternalException: AAPT2 aapt2-3.3.0-5013011-windows Daemon #1: Unexpected error during compile ‘E:\Git\blinker-app\platforms\android\app\src\main\res\drawable-port-xxxhdpi\screen.png’, attempting to stop daemon.
This should not happen under normal circumstances, please file an issue if it does.

  • Try: FAILED
    20 actionable tasks: 18 executed, 2 up-to-date

Run with –stacktrace option to get the stack trace. Run with –info or –debug option to get more log output. Run with –scan to get full insights.

  • Get more help at https://help.gradle.org

BUILD FAILED in 3s
Exception in thread “ForkJoinPool.commonPool-worker-13” java.lang.IllegalStateException: AAPT Process manager cannot be shut down while daemons are in use
at com.android.builder.internal.aapt.v2.Aapt2DaemonManager.shutdown(Aapt2DaemonManager.kt:96)
at com.android.build.gradle.internal.res.namespaced.RegisteredAaptService.shutdown(Aapt2DaemonManagerService.kt:61)
at com.android.build.gradle.internal.workeractions.WorkerActionServiceRegistry$shutdownAllRegisteredServices$1$1.run(WorkerActionServiceRegistry.kt:96)
at java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1402)
at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)
E:\Git\blinker-app\platforms\android\gradlew: Command failed with exit code 1 Error output:
ע: E:\Git\blinker-app\platforms\android\CordovaLib\src\org\apache\cordova\engine\SystemCookieManager.javaʹ�û?����ѹ�ʱ�� API��
ע: �й���ϸ��Ϣ, ��ʹ�� -Xlint:deprecation ���±��롣

FAILURE: Build failed with an exception.

  • What went wrong:
    Execution failed for task ‘:app:mergeReleaseResources’.

java.util.concurrent.ExecutionException: com.android.builder.internal.aapt.v2.Aapt2InternalException: AAPT2 aapt2-3.3.0-5013011-windows Daemon #1: Unexpected error during compile ‘E:\Git\blinker-app\platforms\android\app\src\main\res\drawable-port-xxxhdpi\screen.png’, attempting to stop daemon.
This should not happen under normal circumstances, please file an issue if it does.

  • Try:
    Run with –stacktrace option to get the stack trace. Run with –info or –debug option to get more log output. Run with –scan to get full insights.
  • Get more help at https://help.gradle.org

BUILD FAILED in 3s
Exception in thread “ForkJoinPool.commonPool-worker-13” java.lang.IllegalStateException: AAPT Process manager cannot be shut down while daemons are in use
at com.android.builder.internal.aapt.v2.Aapt2DaemonManager.shutdown(Aapt2DaemonManager.kt:96)
at com.android.build.gradle.internal.res.namespaced.RegisteredAaptService.shutdown(Aapt2DaemonManagerService.kt:61)
at com.android.build.gradle.internal.workeractions.WorkerActionServiceRegistry$shutdownAllRegisteredServices$1$1.run(WorkerActionServiceRegistry.kt:96)
at java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1402)
at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)
[ERROR] An error occurred while running subprocess cordova.

    cordova.cmd build android --release exited with exit code 1.

    Re-running this command with the --verbose flag may provide more information.

一个解释：

java – com.android.builder.internal.aapt.v2.Aapt2InternalException – Stack Overflow

简单说就是gradle插件的bug，新版本已经修复。注意gradle插件不是gradle，其版本对应关系见：

Android Gradle 插件版本说明  |  Android 开发者  |  Android Developers (google.cn)

修改android项目下的build.gradle可以指定gradle插件版本

classpath 'com.android.tools.build:gradle:3.3.3'

cordova-android gradle下载失败解决办法

由
奈何col
-

错误如下：

Exception in thread "main" java.io.IOException: Downloading from https://services.gradle.org/distributions/gradle-4.10.3-all.zip failed: timeout
        at org.gradle.wrapper.Download.downloadInternal(Download.java:106)
        at org.gradle.wrapper.Download.download(Download.java:66)
        at org.gradle.wrapper.Install$1.call(Install.java:68)
        at org.gradle.wrapper.Install$1.call(Install.java:48)
        at org.gradle.wrapper.ExclusiveFileAccessManager.access(ExclusiveFileAccessManager.java:69)
        at org.gradle.wrapper.Install.createDist(Install.java:48)
        at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:107)
        at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:63)
Caused by: java.net.SocketTimeoutException: Read timed out
        at java.net.SocketInputStream.socketRead0(Native Method)
        at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
        at java.net.SocketInputStream.read(SocketInputStream.java:171)
        at java.net.SocketInputStream.read(SocketInputStream.java:141)
        at sun.security.ssl.InputRecord.readFully(InputRecord.java:465)
        at sun.security.ssl.InputRecord.read(InputRecord.java:503)
        at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:983)
        at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1385)
        at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1413)
        at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1397)
        at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:559)
        at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185)
        at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1564)
        at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1492)
        at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:263)
        at org.gradle.wrapper.Download.downloadInternal(Download.java:83)
        ... 7 more
E:\Git\blinker-app\platforms\android\gradlew: Command failed with exit code 1 Error output:
Exception in thread "main" java.io.IOException: Downloading from https://services.gradle.org/distributions/gradle-4.10.3-all.zip failed: timeout
        at org.gradle.wrapper.Download.downloadInternal(Download.java:106)
        at org.gradle.wrapper.Download.download(Download.java:66)
        at org.gradle.wrapper.Install$1.call(Install.java:68)
        at org.gradle.wrapper.Install$1.call(Install.java:48)
        at org.gradle.wrapper.ExclusiveFileAccessManager.access(ExclusiveFileAccessManager.java:69)
        at org.gradle.wrapper.Install.createDist(Install.java:48)
        at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:107)
        at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:63)
Caused by: java.net.SocketTimeoutException: Read timed out
        at java.net.SocketInputStream.socketRead0(Native Method)
        at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
        at java.net.SocketInputStream.read(SocketInputStream.java:171)
        at java.net.SocketInputStream.read(SocketInputStream.java:141)
        at sun.security.ssl.InputRecord.readFully(InputRecord.java:465)
        at sun.security.ssl.InputRecord.read(InputRecord.java:503)
        at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:983)
        at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1385)
        at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1413)
        at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1397)
        at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:559)
        at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185)
        at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1564)
        at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1492)
        at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:263)
        at org.gradle.wrapper.Download.downloadInternal(Download.java:83)
        ... 7 more

解决办法1：

systemProp.http.proxyHost=127.0.0.1
systemProp.http.proxyPort=10808
systemProp.https.proxyHost=127.0.0.1
systemProp.https.proxyPort=10808

解决办法2，给所有build.gradle文件指定使用阿里源

    maven{url ‘https://maven.aliyun.com/repository/central’}
    maven{url ‘https://maven.aliyun.com/repository/jcenter’}
    maven{url ‘https://maven.aliyun.com/repository/google’}
    maven{url ‘https://maven.aliyun.com/repository/gradle-plugin’}

最新版Arduino物联网开发教程

由
奈何col
-

下载地址：https://share.weiyun.com/pt88huBs

服务管理

由
奈何col
-

Documentation | Consul by HashiCorp

opencv文字提取

由
奈何col
-

https://blog.csdn.net/qq_19707521/article/details/78361600

https://blog.csdn.net/qq_30815237/article/details/88665822

https://www.cnblogs.com/zxy-joy/p/10687152.html

二值化参数：

thresholdType：Int类型的
THRESH_BINARY 二进制阈值化 -> 大于阈值为1 小于阈值为0
THRESH_BINARY_INV 反二进制阈值化 -> 大于阈值为0 小于阈值为1
THRESH_TRUNC 截断阈值化 -> 大于阈值为阈值，小于阈值不变
THRESH_TOZERO 阈值化为0 -> 大于阈值的不变，小于阈值的全为0
THRESH_TOZERO_INV 反阈值化为0 -> 大于阈值为0，小于阈值不变

低延迟视频直播方案

由
奈何col
-

https://github.com/kyriesent/node-rtsp-stream

流媒体服务器方案：

https://github.com/xiongziliang/ZLMediaKit

https://github.com/ossrs/srs

https://www.liveqing.com/docs/download/LiveGBS.html

angular打造低代码开发方案

由
奈何col
-

https://github.com/Ricbet/panel-magic

https://zhuanlan.zhihu.com/p/101677992

https://github.com/kevoj/angular-editor-fabric-js

https://github.com/fabricjs/fabric.js

物联网时序数据库选型

由
奈何col
-

DolphinDB 

TimescaleDB

绑定github账号，免费增加设备额度

由
奈何col
-

免费增加blinker设备额度的方法：

1.登录点灯管理台( https://admin.diandeng.tech/ )  
2.点击右侧的github图标，进行绑定

3.在页面登录github账号，完成绑定，即可获赠5个DIY设备额度。

PS：账号绑定会自动star blinker项目，加blinker用户QQ群(301438087)，加群后可退群费

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