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my english is poor!But I try to explain my point of view! one:use jsp developing or jsp+servlet or jsp+servlet+jpa(use toplink) with netbeans,develop jsp or jsp+servlet or jsp+servlet+jpa(use toplink) the tomcat can work satisfactorily,but sometimes after it start ,the processbar always show busy !this is not discontentedly to me,but I shoutdown tomcat,netbeans can't do ,this is very troublely!I must use system task manager to kill java.exe process!this thing is worse when I update the code!netbeans can auto deployee the web program,but nightmare also comes.I can't know the server is starting or shoutdown!Because the processbar always show busy,it display the server is starting and the web is deployeeing,until after 120s ,the server timeout!but I use system task manager ,I can work with it. two:use developing Struts JPA(hibernate) spring netbeans work badly very much ! the above thing occur much continually . I can't help using eclipse!netbeans integration is very good!but any web program must require a web server,server is too bad to debug ,it cost much time! eclipse start server as javaw.exe,although sometimes the depeloyeeing take misstake ,but eclipse can control it effectively .I can expediently start or showdown or restart the server! on the other hand,eclipse start server fast a little! I feel that netbeans auto depeloyee more frequently!close the code editer,or update the code and so on,it auto depeloyee.eclipse can delay,and reduce the times,which depeloyee the program,and the times it too much ,eclipse can stop auto depeloyee !Because the times is too much,We think the developer is frequently updating the code,so the IDE unnecessarily redepeloyee!when the developer request the page,he know the error,he can start the server.this is good to above thing,at lowest ,the server is controlled easily!eclipse yet occur error when the depeloyeeing times is to much !but eclipse can stop the server!netbeans require system task manager! I use netbeans 6.5,6.7,6.7.1,yestday,I use 6.8,I find this thing is still exist!
maybe I loses some jars,I add two jars that I didn't add,netbeans work better than before,it reload the web correctly!the two jar is bsf-2.3.0.jar and commons-chain-1.1.jar,they are folded by struts1.3.8 I think some jars are not needed on running,but sometimes they are needed! I am sorry for my fault!
Ok closing as WORKSFORME.