Miscellaneous! You need to grow fast! Just hustle up! Dude! Nvr GV up! Go! Go! Go!

Summary of technologies/tools used in the project:

Bug Management: bugfree

Cache: memcache

Message Bus: activemq

Continuous integration: jenkins

CodeCheck: PMD/checkstyle/findbug

WS Test Platform: soapui

Web server: JBoss/tomcat/WebLogic

Database: Oracle/MySQL

Remote Communication: Mina

Text Editor: kindeditor

Rich Client framework: easyui

Data certificate: X.509, which can be used for class file encryption

Java open-source forum: jforum

Java monitoring: jconsole

Test Tool: LoadRunner and jmeter

 

 

Tool address in JSON format:

Http://tools.jb51.net/tools/json/json_editor.htm

Http://jsonlint.com/

Findbug summary:

1. Makes inefficient use of keyset iterator instead of entryset iterator
Explanation: The keyset method does not provide better performance for map traversal than entryset.

This method needs to be used when traversing the map: (efficiency is twice faster than the second method)
Iterator <entry <string, string> entrykeyiterator = entrysetmap. entryset (). iterator ();
While (entrykeyiterator. hasnext ()){
Entry <string, string> E = entrykeyiterator. Next ();
System. Out. println (E. getkey ());
System. Out. println (E. getvalue ());
}
Do not use the following method:
Iterator <string> keysetiterator = keysetmap. keyset (). iterator ();
While (keysetiterator. hasnext ()){
String key = keysetiterator. Next ();
String value = keysetmap. Get (key );
System. Out. println (key );
System. Out. println (value );

}

 

Java reads the properties File

String STR = file. Separator;
File F = new file ("D: \ A. properties ");
Inputstream Path = new fileinputstream (f );
// Inputstream = This. getclass (). getclassloader (). getresourceasstream ("password. properties ");
/* File filepath = new file (this. getservletcontext (). getrealpath (STR + "WEB-INF" + STR + "classes") + STR + "password. properties ");
Inputstream Path = new fileinputstream (filepath );*/
Properties pros = new properties ();
Try {
Pros. Load (PATH );
} Catch (ioexception ex ){
System. Out. println ("file is not exist ");
}
System. Out. println ("username:" + pros. getproperty ("username") + ", password:" + pros. getproperty ("password "));

Username = Yang
Password = Ming

 

 

Tomcat6 memory modification method:
Insert in the first line of Catalina. BAT:
Set java_opts =-xms256m-xmx512m-XX: maxpermsize = 128 M-DCOM. sun. management. jmxremote. port = 1090-DCOM. sun. management. jmxremote. SSL = false-DCOM. sun. management. jmxremote. authenticate = false

Setting window-preferences-Java-Editor-SAVE actions in eclipse will help you import/delete packages by yourself.
Eclipse shortcut:
1. CTRL + ALT + H
Show who calls
Note: "H" ---> "hierarchy" ---> "Call level"

2. Alt + Shift + R Rename for variables

3. Alt + Shift + C reconstruction for methods

4. CTRL + Shift + B add a breakpoint to a row

5. CTRL + F11 run the last timeProgram, F11 debug the last program

6. CTRL + k Ctrl + Shift + k search for keywords up/down

7. Alt + Shift + W find the path in the project where the current file is located

thread. currentthread (). getstacktrace () [1]. getmethodname (); get the name of the current method
thread. currentthread (). getstacktrace () [2]. getmethodname (); get the name of the method that calls the current method
// The following method can get the name of the nested method
Public static void main (string [] ARGs) {
pushpoi1 ();
}< br>
Public static void pushpoi1 () {
common1 ();
}< br>
Public static void common1 () {
system. out. println (thread. currentthread (). getstacktrace () [2]. getmethodname ();
}< br>