the V_1 compilation on the IL.
The code is restored as follows:
1 class Bird 2 { 3 public void Fly(string name) 4 { 5 int? r; 6 7 if (name == null) 8 { 9 int? V_1 = new Nullable
Iv. nameof expression
When I know the purpose of this keyword, my first response is the LogManager class in the company framework. When we use new LogManager
Use of log4net in. net, and use of. netlog4net
The console application is used as an example.
First, add reference:
After installation, you can see that log4net references are added to the project:
Add the application configuration file app. config and configure log4net
Add code to Program. cs:
Static void Main (string [] args) {log4net. config. xmlConfigurator. configure (); // create a logging component instance ILog log = log4net. logManager
level immediately later) bool isdebugenabled; BOOL isinfoenabled; ... The Boolean property that corresponds to the other method}The Log4net framework defines a class called Logmanager that is used to manage all logger objects. It has a getlogger () static method that retrieves an already existing logger object with the name parameter we provide. If the Logger object does not exist in the frame, it will also create a logger object for us. The code
1. The first common class to hold exceptions (that is, to write exception information to a file)
Copy Code code as follows:
public class Logmanager
{
private string LogFilePath = String. Empty;
Public Logmanager (String logfilepath)
{
This.logfilepath = LogFilePath;
FileInfo file = new FileInfo (LogFilePath);
if (!file. Exists)
{
File. Create (). Close ();
}
}
public
By default, the JDK's logmanager will read the configuration in the "lib/logging.properties" file in the JRE directory.
Custom configurations are often required in development, so you can modify the default configuration in two ways:
1, through the Java command line to modify the way
In addition, Logmanager can also allow users to control the configuration of the log based on two system properties: "Java.u
The main submodules of Kafka broker are described below to help you better learn and understand Kafka source code and architecture.
Several sub-modules are described as follows:
Kafka API layer Logmanager and Log replicamanager zookeeperconsumerconnector service Schedule is how several modules of the system are composed into a schema diagram:startup processZkclient Initialize =>logmanager start () = Sockets
Write (object message, Exception exception );Void Write (object message, Exception exception, LogInfoType logInfoType );}Netop. core. log. logManager is a factory class that uses logs. The most important processing is how to extract the encrypted ConnectionString to Log4Net When configuring logs for Log4Net databases, for details, see the GetLog4NetLogger method and related configuration code.The configuration related to Log4Net is as follows:In addi
C # program Singleton log output,
For a complete program system, a log record is essential. You can use it to record the running status and error information of a program during running. For example, errors that do not want to be prompted through the dialog box, exceptions caught during program execution, etc.
First, create a new class in the appropriate directory in your solution, such as LogManager:
Write the following code:
1 ///
Among them, rows
with letters. // 3y, y3, or x3j, which must be 32-bit or not afterString + =. toString ("x2");} catch (Exception ex) {ILog log = log4net. logManager. getLogger (this. getType (); log. error ("=================== you have caused an Error ========================" + ex. message. toString ();} return afterString ;}////// Method 2 // HashAlgorithm encryption // This encryption is a letter plus-plus character // Example: password is admin encrypted and ch
. NET Core log4net, corelog4net
Log4net. NET Core is used. It has been released for a while since version 2.0.6.
Previously, we introduced the use of NLog. NET Core. ASP. NET Core development-Logging used NLog to write log files.
ASP. NET Core has built-in log support and can be easily output to the console. Use log4net to write logs to the file and output console.
. NET Core project usage
Create a. NET Core project and selectConsole Application.
Add reference:
Install-Package log4net
Use simpl
, my first reaction is the Logmanager class in the company framework, and when we new Logmanager, we will also put the current class namePass on, then do some post-processing, but in the past we can only do so, either with reflection, or write dead.1 namespaceConsoleApplication32 {3 class Program4 {5 Static voidMain (string[] args)6 {7 //First: Use reflection8
allows you to create load balancing and fault tolerance between multiple computers.
Use Quartz. NET
First, reference the following dll
The first four areQuartz. NETUse required, ToshelfIs used for the window service.
Add QuartzHelp class library
Add JobDemo. cs to implement the IJob interface.1 namespace QuartzHelp 2 {3 public class JobDemo: IJob 4 {5 // log object 6 private static readonly ILog logger = LogManager. getLogger (typeof (JobDemo); 7
: %-10c-% m % nCode:ILog log = LogManager. GetLogger ("Exam. Log ");Log. Debug ("Hello ");The output is in the following format:Exam. Log-Hello% L: the row number of the output statement% F: File Name of the output statement%-Number: indicates the minimum length of the item. If not, fill it with spaces.-->6. Configure Log4net in the project. The configuration method is as follows: In AssemblyInfo. cs (the Web Project is web. config) Add at the bottom:
Title: Custom Log4j2 send log to KafkaTags:log4j2,kafka
In
order to provide the company's big data platform each project group's log, but also makes each project group to change not to perceive. Did a survey only to find LOG4J2 default has the support to send the log to the Kafka function, under the surprise hurriedly looked under log4j to its realization source! found that the default implementation is synchronous blocking, if the Kafka service once hung up will block the normal serv
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