Question

这是我使用workbox-webpack-plugin（InjectManifest）编译的服务工作者：

importScripts("/dist/precache-manifest.fec4937a7fe6a37db29b13fc00b6d92a.js", "/dist/workbox-v3.2.0/workbox-sw.js");
workbox.setConfig({modulePathPrefix: "/dist/workbox-v3.2.0"});
importScripts('/idb.js');
importScripts('/utility.js');

var STATIC_FILES = [
    '/index.html',
    '/idb.js',
    '/utility.js',
];

workbox.routing.registerRoute(
    'http://54.xx.xxx.57/(.*)',
    workbox.strategies.networkFirst({
        cacheName: 'cache-posts'
    }),
    'GET'
);

self.__precacheManifest = STATIC_FILES.concat(self.__precacheManifest || []);
workbox.precaching.suppressWarnings();
workbox.precaching.precacheAndRoute(self.__precacheManifest, {});

预先准备好了，但我无法弄清楚如何让registerRoute工作，我尝试了几件事。 SW只是没有兑现来自＆＃39; http://54.xx.xxx.57/＆＃39;的任何东西。请帮忙......：）

Answer 1

看起来它不是registerRoute中的正则表达式。应该是：

workbox.routing.registerRoute(
  new RegExp('http://54.xx.xxx.57/(.*)'),
  workbox.strategies.networkFirst({
    cacheName: 'cache-posts'
  }),
 'GET');

Answer 2

您的正则表达式中有错误。您应该这样逃脱正斜杠。

    Traceback (most recent call last):
      File "C:\Apps\Anaconda3\lib\site-packages\sqlalchemy\engine\base.py", line 1116, in _execute_context
        context)
      File "C:\Apps\Anaconda3\lib\site-packages\sqlalchemy\engine\default.py", line 447, in do_executemany
        cursor.executemany(statement, parameters)
    pyodbc.IntegrityError: ('23000', "[23000] [Microsoft][SQL Server Native Client 11.0][SQL Server]Violation of PRIMARY KEY constraint 'PK__existingSQLTable__'. Cannot insert duplicate key in object 'dbo.existingSQLTable'. The duplicate key value is (20008.7, 2008-08-07, Fl). (2627) (SQLExecute); [23000] [Microsoft][SQL Server Native Client 11.0][SQL Server]The statement has been terminated. (3621)")

    The above exception was the direct cause of the following exception:

    Traceback (most recent call last):
      File "<pyshell#24>", line 1, in <module>
        Table.to_sql(name = 'existingSQLTable', con = engine, if_exists = 'append', index = False, chunksize = 10000, dtype = dataTypes)
      File "C:\Apps\Anaconda3\lib\site-packages\pandas\core\generic.py", line 1165, in to_sql
        chunksize=chunksize, dtype=dtype)
      File "C:\Apps\Anaconda3\lib\site-packages\pandas\io\sql.py", line 571, in to_sql
        chunksize=chunksize, dtype=dtype)
      File "C:\Apps\Anaconda3\lib\site-packages\pandas\io\sql.py", line 1250, in to_sql
        table.insert(chunksize)
      File "C:\Apps\Anaconda3\lib\site-packages\pandas\io\sql.py", line 770, in insert
        self._execute_insert(conn, keys, chunk_iter)
      File "C:\Apps\Anaconda3\lib\site-packages\pandas\io\sql.py", line 745, in _execute_insert
        conn.execute(self.insert_statement(), data)
      File "C:\Apps\Anaconda3\lib\site-packages\sqlalchemy\engine\base.py", line 914, in execute
        return meth(self, multiparams, params)
      File "C:\Apps\Anaconda3\lib\site-packages\sqlalchemy\sql\elements.py", line 323, in _execute_on_connection
        return connection._execute_clauseelement(self, multiparams, params)
      File "C:\Apps\Anaconda3\lib\site-packages\sqlalchemy\engine\base.py", line 1010, in _execute_clauseelement
        compiled_sql, distilled_params
      File "C:\Apps\Anaconda3\lib\site-packages\sqlalchemy\engine\base.py", line 1146, in _execute_context
        context)
      File "C:\Apps\Anaconda3\lib\site-packages\sqlalchemy\engine\base.py", line 1341, in _handle_dbapi_exception
        exc_info
      File "C:\Apps\Anaconda3\lib\site-packages\sqlalchemy\util\compat.py", line 202, in raise_from_cause
        reraise(type(exception), exception, tb=exc_tb, cause=cause)
      File "C:\Apps\Anaconda3\lib\site-packages\sqlalchemy\util\compat.py", line 185, in reraise
        raise value.with_traceback(tb)
      File "C:\Apps\Anaconda3\lib\site-packages\sqlalchemy\engine\base.py", line 1116, in _execute_context
        context)
      File "C:\Apps\Anaconda3\lib\site-packages\sqlalchemy\engine\default.py", line 447, in do_executemany
        cursor.executemany(statement, parameters)

理想情况下，如果您不想像这样捕捉任何字符，也应该转义这些点：

 '/http:\/\/54.xx.xxx.57\/(.*)/'

工作箱registerRoute问题与兑现

2 个答案: