提示No compiler is provided in this environment. Perhaps you are running on a JRE rather 怎么办

[INFO] Scanning for projects...
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[INFO] Reactor Build Order:
[INFO] 
[INFO] Maven_Total
[INFO] Maven_Dao
[INFO] Maven_Service
[INFO] Maven_Web Maven Webapp
[INFO]                                                                         
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[INFO] Building Maven_Total 0.0.1-SNAPSHOT
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[INFO] 
[INFO] --- maven-install-plugin:2.4:install (default-install) @ Maven_Total ---
[INFO] Installing D:\java20201020\Maven_Total\pom.xml to D:\maven_new_localrepository\com\rj\bd\Maven_Total\0.0.1-SNAPSHOT\Maven_Total-0.0.1-SNAPSHOT.pom
[INFO]                                                                         
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[INFO] Building Maven_Dao 0.0.1-SNAPSHOT
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[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ Maven_Dao ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory D:\java20201020\Maven_Dao\src\main\resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ Maven_Dao ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 2 source files to D:\java20201020\Maven_Dao\target\classes
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[ERROR] COMPILATION ERROR : 
[INFO] -------------------------------------------------------------
[ERROR] No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?
[INFO] 1 error
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO] 
[INFO] Maven_Total ........................................ SUCCESS [  0.166 s]
[INFO] Maven_Dao .......................................... FAILURE [  0.334 s]
[INFO] Maven_Service ...................................... SKIPPED
[INFO] Maven_Web Maven Webapp ............................. SKIPPED
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[INFO] BUILD FAILURE
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[INFO] Total time: 0.577 s
[INFO] Finished at: 2021-01-07T16:26:24+08:00
[INFO] Final Memory: 9M/243M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project Maven_Dao: Compilation failure
[ERROR] No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?
[ERROR] -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
[ERROR] 
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :Maven_Dao