rapidly cultivated a large number of user groups. This phenomenon provides a lot of meaningful inspiration for fixed network operators and mobile network operators: IP-based multimedia applications will be the core competitiveness for users and increase the ARPU value. In addition, compared with the traditional TDM signaling service implementation method, the IP-based service implementation method is convenient, flexible, and fast. Therefore, fixed network operators and mobile network operators
;headers_out.status =ngx_http_not_modified; R->headers_out.status_line.len =0; R->headers_out.content_type.len =0; Ngx_http_clear_content_length (R); Ngx_http_clear_accept_ranges (R); if(r->headers_out.content_encoding) {R->headers_out.content_encoding->hash =0; R->headers_out.content_encoding =NULL; } returnNgx_http_next_header_filter (R); } returnNgx_http_next_header_filter (R);}By looking at the code and debugging found, did not return 304 because the code jumped out h
1, the level of the log:
We're going to call the logger method now, but there are a lot of methods in this logger object, so we need to understand the log level of log4j, log4j set the default levels: Trace
1 levels are included in the relationship, meaning that if you set the log level to be trace, the log will be output greater than or equal to this level.
2 Basically the default level is not much differe
15th General API15.1 Log 15.1.1 Log API Introduction1, java.util.logging package provides the log function related classes and interfaces, do not need to configure the log components, can be used in the standard Java platform is its advantage. The starting point for using the log is the logger class, and the constructor for the logger class is labeled protected. A class that is not a java.util.logging packa
introduction logging module is a python built-in standard module, mainly used for output log, you can set the level of output logs, log save path, log files and rollback, etc. It can be said that the logging module consists mainly of 4 parts: *logger Logger , which provides interfaces that application code can use directly NBSP;NBSP; *handler processor , sends log records generated by the
Logger hierarchy (Level level)
The logger are all named entities.
Logger names are case-sensitive and follow these rules:
1. If the name of a logger is prefixed by the name of the B logger (by ".") Connection), said a logger is
In real life, logging is important. Bank transfer will have a record of the transfer, the aircraft during the flight, there will be a black box (flight data logger) to record everything during the flight. If there are any problems, people can use log data to figure out what exactly happened. Logging is equally important for system development, commissioning, and operation. Without logging, you can hardly figure out what's going on when the program cra
information with the above configuration method?
Before you solve the above problems, you need to understand a few of the more important concepts,Logger,Handler,Formatter,FilterA few important concepts
The Logger recorder exposes an interface that the application code can use directly.
Handler processor that sends (logger-generated) log records
This article is transferred from Kenby's blog, more comprehensive move, turn to stay for later use.http://kenby.iteye.com/blog/1162698First, starting from a usage scenarioImportLogging#Create a loggerLogger = Logging.getlogger ('MyLogger') Logger.setlevel (logging. DEBUG)#create a handler to write to the log fileFH = logging. Filehandler ('Test.log') Fh.setlevel (logging. DEBUG)#create another handler for output to the consoleCH =logging. Streamhandler () Ch.setlevel (logging. DEBUG)#define the
for this purpose and used in the. NET development environment.
1.2 installation of log4net:
Users can download the source code of log4netfrom http://logging.apache.org/log4net. After the package is decompressed, load log4net. sln to Visual Studio. NET in the decompressed src directory. After compilation, you can obtain log4net. dll. To add the log function to your program, you only need to introduce log4net. DLL into the project.
2 log4net Structure
Log4net has four main components:
you are not familiar with the relevant information, refer to the following link.
If you want to introduce monolog in your code, you only need to execute:
Composer require monolog/monolog
Commit log has several important concepts:
First: handler log Manager
The data structure for handler storage is a "stack". A log instance can have multiple handler instances. The pushHandler method of the Logger instance is used to press the handler into a parameter
Simplifies the glog, only retains the function of writing log files, only to rewrite the Linux version, the win version is not rewritten, you can useLog (INFO) Log_if (info,condition) You can also call the Log Class Logger::getinstance () directly. Error and other ways to write a logCall Initlogging (Argv[0],info, "./log/test") when initializing;The first parameter is the path, the second parameter is the lowest log level, and the third parameter repr
log4j log File configuration
------------------------------------------------------------------------
first, the log device configuration
# root Logger (other logs are inherited from this logger)
# Default Level=debugLog4j.rootlogger=info, A1, A2 (a1,a2 for Appender)
# Level of the log
Log4j.logger.a=info,a1
Log4j.logger.a.b=debug,a1,a2
The log's inheritance relationship is: A.b inherits from the A,a inheri
form of connectionless UDP datagrams or UDPCLBroadcast in the form of ient.
2.2 Filters
Filters can be used to filter out the contents of the Appender output. There are several filters: Denyallfilter prevents all log events from being logged levelmatchfilter only log events of a specified level are logged Levelrangefilter events that are within a specified range of log levels are logged Loggermatchfilter logger name matching to record the PropertyFi
Absrtact: ExtJS is one of the most mainstream front-end interface development tools, powerful, beautiful appearance. Although the development of a lot of documents on the Web, but in the actual application will still encounter a lot of problems, this article combined with Enterprise Informatization, SAP ERP and other practical project development experience, to use EXTJS development to do a comb and summary, especially in the development of the key problems encountered in detail elaborated, I ho
Log4cplus has three main components:
Layouts
Appenders
Loggers
These three type of components found the basic of the log4cplus framework.
Here is a simplified UML Graph Modeling strating the relationships of those classes:
(1) A "layout" Class determines the format of the log message (How do we print out the message ).And log4cplus comes with three layout class:
Simplelayout
Ttcclayout
Patternlayout
These classes accept log event and emits formatt
to Visual Studio. NET in the decompressed src directory. After compilation, you can obtain log4net. dll. To add the log function to your program, you only need to introduce log4net. DLL into the project. 2 log4net Structure Log4net has four main components: logger, repository, appender, and layout ). 2.1 Logger 2.1.1 logger interface
Go to your own blog early, and save it for future blocking.
Single radio voice call continuity (srvcc) srvcc is an LTE functionality that allows a VoIP/IMS call in the LTE packet domain to be moved to a legacy voice domain (GSM/UMTS or CDMA 1X ). consider a case where a new LTE network operator wants to move voice services to VOIP over IMS in conjunction with the deployment of an LTE access network. in the
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