1. Download and install Tomcat:
1.1 Official download address: https://tomcat.apache.org/
Try to choose the exe program to install, the compressed package did not start up for the first time, and the tomcat11 version always prompts a version error, so I replaced it with the tomcat8 version and started smoothly
1.2, after the installation is complete, enter http://localhost:8080/ in the browser , and the tomcat welcome page appears, indicating that there is no problem
1.3, the startup failure may be mainly due to environment variables and port occupation
Variable name: CATALINA_HOME
Variable value: Tomcat installation path
Port occupancy check, windows+R to bring up the command box, enter cmd into the terminal, enter netstat -ano|findstr 8080, if it is occupied, replace it with 8081 or other, restart the tomcatf service, and try again http://localhost:8081/
Two, IntelliJ IDEA configuration
2.1 New project
2.2, add javaEE framework support
2.3 We found that there is no javaee module in the framework. There are two situations. One is the downloaded community version, which does not support JavaEE module. The second is that it is already an official version or there is no JavaEE. At this time, you need to add the registry of the javaee module. Shortcut keys Ctrl + Shift + Alt + /
Three, run
3.1, error:
Error:Internal error: (java.lang.IllegalAccessError) class com.intellij.util.io.FileChannelUtil (in unnamed module @0x4387b79e) cannot access class sun.nio.ch.FileChannelImpl (in module java.base) because module java.base does not export sun.nio.ch to unnamed module @0x4387b79e
java.lang.IllegalAccessError: class com.intellij.util.io.FileChannelUtil (in unnamed module @0x4387b79e) cannot access class sun.nio.ch.FileChannelImpl (in module java.base) because module java.base does not export sun.nio.ch to unnamed module @0x4387b79e
at com.intellij.util.io.FileChannelUtil.setupUnInterruptibleHandle(FileChannelUtil.java:26)
at com.intellij.util.io.FileChannelUtil.<clinit>(FileChannelUtil.java:18)
at com.intellij.util.io.ReadWriteDirectBufferWrapper$FileContext$1.execute(ReadWriteDirectBufferWrapper.java:50)
at com.intellij.util.io.ReadWriteDirectBufferWrapper$FileContext$1.execute(ReadWriteDirectBufferWrapper.java:42)
at com.intellij.openapi.util.io.FileUtilRt.doIOOperation(FileUtilRt.java:945)
at com.intellij.util.io.ReadWriteDirectBufferWrapper$FileContext.<init>(ReadWriteDirectBufferWrapper.java:42)
at com.intellij.util.io.ReadWriteDirectBufferWrapper.create(ReadWriteDirectBufferWrapper.java:27)
at com.intellij.util.io.DirectBufferWrapper.getBuffer(DirectBufferWrapper.java:24)
at com.intellij.util.io.ReadWriteDirectBufferWrapper.getBuffer(ReadWriteDirectBufferWrapper.java:16)
at com.intellij.util.io.PagedFileStorage$StorageLock.createValue(PagedFileStorage.java:631)
at com.intellij.util.io.PagedFileStorage$StorageLock.get(PagedFileStorage.java:558)
at com.intellij.util.io.PagedFileStorage$StorageLock.access$500(PagedFileStorage.java:466)
at com.intellij.util.io.PagedFileStorage.getBufferWrapper(PagedFileStorage.java:407)
at com.intellij.util.io.PagedFileStorage.getBuffer(PagedFileStorage.java:371)
at com.intellij.util.io.PagedFileStorage.put(PagedFileStorage.java:278)
at com.intellij.util.io.PagedFileStorage.fillWithZeros(PagedFileStorage.java:356)
at com.intellij.util.io.PagedFileStorage.resize(PagedFileStorage.java:330)
at com.intellij.util.io.ResizeableMappedFile.expand(ResizeableMappedFile.java:108)
at com.intellij.util.io.ResizeableMappedFile.ensureSize(ResizeableMappedFile.java:77)
at com.intellij.util.io.ResizeableMappedFile.putInt(ResizeableMappedFile.java:221)
at com.intellij.util.io.PersistentEnumeratorBase.markDirty(PersistentEnumeratorBase.java:597)
at com.intellij.util.io.PersistentEnumeratorBase.<init>(PersistentEnumeratorBase.java:185)
at com.intellij.util.io.PersistentBTreeEnumerator.<init>(PersistentBTreeEnumerator.java:73)
at com.intellij.util.io.PersistentEnumeratorDelegate.<init>(PersistentEnumeratorDelegate.java:47)
at com.intellij.util.io.PersistentHashMap.<init>(PersistentHashMap.java:149)
at com.intellij.util.io.PersistentHashMap.<init>(PersistentHashMap.java:138)
at com.intellij.util.io.PersistentHashMap.<init>(PersistentHashMap.java:129)
at com.intellij.util.io.PersistentHashMap.<init>(PersistentHashMap.java:121)
at com.intellij.util.io.PersistentHashMap.<init>(PersistentHashMap.java:114)
at org.jetbrains.jps.incremental.storage.AbstractStateStorage.createMap(AbstractStateStorage.java:124)
at org.jetbrains.jps.incremental.storage.AbstractStateStorage.<init>(AbstractStateStorage.java:27)
at org.jetbrains.jps.incremental.storage.FileTimestampStorage.<init>(FileTimestampStorage.java:27)
at org.jetbrains.jps.incremental.storage.ProjectStamps.<init>(ProjectStamps.java:39)
at org.jetbrains.jps.incremental.storage.ProjectTimestamps.<init>(ProjectTimestamps.java:19)
at org.jetbrains.jps.cmdline.BuildRunner.load(BuildRunner.java:92)
at org.jetbrains.jps.cmdline.BuildSession.runBuild(BuildSession.java:274)
at org.jetbrains.jps.cmdline.BuildSession.run(BuildSession.java:130)
at org.jetbrains.jps.cmdline.BuildMain$MyMessageHandler.lambda$channelRead0$0(BuildMain.java:232)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
at java.base/java.lang.Thread.run(Thread.java:1589)
This is caused by the JDK version is too high, modify the JDK version in the project configuration
3.2, tomcat configuration error
Error running ‘Tomcat 8.5.45‘ port out of range-1
Open the tomcat installation directory, server.xml in the config directory, and change the port from the original -1 to 8005.
3.3 Port occupation
Open the editor tomcat configuration, change the port 8080 to 8081, and run it again to open the webpage normally
Four editors extend the validity period
4.1 Official website IntelliJ IDEA download link: https://www.jetbrains.com/idea/download/
4.2 Download extension tool: Link: https://pan.baidu.com/s/1ycx9KkhTLtdqvT-0TQ67-A Extraction code: haha
4.3 Double-click reset_jetbrains_eval_windows.vbs to execute the script directly, just wait for the execution to complete
4.4 Plug-in patch use, drag ide-eval-resetter-2.1.6.zip into IDEA interface
Or you can manually install the plugin in Settings/Preferences... -> ( )PluginsInstall Plugin From Disk...
4.5 use
If the IDE does not open the project, click the menu on the Welcome interface: Get Help -> Eval Reset
If the IDE opens the project, click the menu: Help -> Eval Reset
Button: Reload is used to refresh the displayed information on the interface, including the time when the 30-day trial period was last reset.
Button: Reset Clicking will ask whether to reset the trial for 30 days and restart the IDE. Select Yes to execute the reset operation and restart the IDE to take effect, select No to do nothing
It can also be updated automatically, check Auto reset before per restart, and the trial information will be automatically reset every time you restart/exit the IDE
4.6 You can see that before the update is April 11, 2023
After the update is April 28, 2023, which is 30 days from today
