jsp Cannot switch on a value of type String

JBPM4 summary of common errors

1. Under the deployment of an error in tomcat6.0 Based JBPM4 of web Error jsp page publishing project Phenomenon : javax.servlet.ServletException: java.lang.LinkageError: loader constraint violation: when resolving interface method "javax.servlet.jsp.JspA

0 MyEclipse using the lessons learned. Shortcut keys

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Common abnormalities resolved

ConcurrentHashMap and CopyOnWriteArrayList comparison. Blog categories: Java ConcurrentHashMap ConcurrentHashMap introduced Segment, each Segment is a hashtable, the equivalent of two Hash table, and then lock in the Segment level, and increased concurren

tomcat performance tuning

In the Tomcat and application of the stress test, if the performance of your application, not satisfied with the results, you can take some performance tuning measures, and of course the premise is the application process does not, we here speak only Tomc

spring security validation process

Operational needs, but also get permission from the management. Despite all know that long ago had the permissions on the container implementations, but have always felt that was too simple a thing. Later, when you use liferay's permissions syste ...

Turn: JBPM4 Common Error Summary

1. Tomcat6.0 deployment of the error under the web-based project JBPM4 error jsp page Posted phenomenon: javax.servlet.ServletException: java.lang.LinkageError: loader constraint violation: when resolving interface method "javax.servlet.jsp.JspApplic

A collection of Java Performance Optimization Tips

=== ================================ Abstract: ============= ====================== Procedures for the use of available resources (memory, CPU time, network bandwidth, etc.) is limited, the purpose of optimization is to allow programs to use the least res

Project migration from tomcat to weblogic environment issues continue to add in the aggregate ---- ing ...

1, JDK and Servlet versions of the problem WebLogic 8.1 sp4 ago (including sp4) only supports JDK1.4, JDK1.4 compiled code suggested, sometimes JDK1.5 compiled program can not run, because WebLogic 8.1 does not support J2EE1.4, do not use Servlet2.4 and J

generate debugging information when compiling java options Xiangjie (javac-g)

Introduction First said why write this short essay, recently many of my colleagues are wondering why this one question, why Ant compile code in the log where the error Yichang stack can not see line number information, each time if the positioning, need r

JBPM4 common error summary Favorites

JBPM4 common error summary collection http://blog.csdn.net/cnham/archive/2009/12/16/5013068.aspx 1. Tomcat6.0 error under the deployment of web-based project JBPM4 error jsp page Posted phenomenon: javax.servlet.ServletException: java.lang.LinkageError: l

Analysis Tomcat startup.bat startup script

Analysis Tomcat startup.bat startup script Keywords: startup.bat Nothing else to do, usually more than the container used tomcat, so today wanted to open the tomcat startup script look. Said tomcat is pure Java, Open it and see this thing that only you ca

HTML.JS.JSON special characters

JS to convert HTML special characters These days to do the project, found that in JSON format from the server to pass data to the client, by JS displayed in HTML pages, there are some special characters can not be directly displayed as the background to p

[Transfer] linux basic commands practice

---------------- ---------------------- Way to find files find.-name "project_supply_sign.xsl" --------------------------- ---------------- Ftp method [Root @ ecapp1 shx3] # cd common [Root @ ecapp1 common] # cd js [Root @ ecapp1 js] # ftp 172.0

MyEclipse using the lessons learned

0 shortcuts ================================================== ============================== Editor: Ctrl + Shift + L Show all shortcuts Ctrl + K with reference to the selected word (Word) to quickly navigate to the next Ctrl + Shift + K with reference t
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