springboot maven-compiler-plugin使用

官网：Apache Maven Compiler Plugin – Introduction

maven compiler plugin

The Compiler Plugin is used to compile the sources of your project. 
# compiler创建用来编译项目源码

Since 3.0, the default compiler is javax.tools.JavaCompiler (if you are using java 1.6) 
and is used to compile Java sources. 
# 从3.0版本开始，maven默认使用javax.tools.JavaCompiler编译项目

If you want to force the plugin using javac, you must configure the plugin option
forceJavacCompilerUse.
# 如果要使用jdk提供的javac进行编译，可以用参数forceJavacCompilerUse

Also note that at present the default source setting is 1.6 and the default target setting 
is 1.6, independently of the JDK you run Maven with
# 编译项目source、target都是1.6版本，和运行maven时使用的jdk版本无关

compiler goal

#　compiler:compile 
is bound to the compile phase and is used to compile the main source files
# 和compile阶段绑定，用来编译main source文件

# compiler:testCompile 
is bound to the test-compile phase and is used to compile the test source files
# 和test-compile绑定，用来编译test source文件

相关命令

mvn compile：编译main source文件
mvn test-compile：编译test source文件

插件配置

****************                 

指定编译版本

设置source、target

    
        hello
        

            ...

            
                org.apache.maven.plugins
                maven-compiler-plugin
                3.8.1
                
                    16
                    16
                
            
        
    

 实际运行时不一定会使用指定的版本，可指定对应版本的javac路径，fork设置为true

****************   

使用javac编译

    
        hello
        

            ...

            
                org.apache.maven.plugins
                maven-compiler-plugin
                3.8.1
                
                    true

                    
                    true

                    
                    ${java.home}binjavac
                
            
        
    

****************   

设置编译内存

    
        hello
        

            ...

            
                org.apache.maven.plugins
                maven-compiler-plugin
                3.8.1
                
                    true
                    16
                    16
                    true
                    ${java.home}binjavac

                    
                    100m
                    200m
                
            
        
    

****************   

设置编译参数

    
        hello
        

            ...

            
                org.apache.maven.plugins
                maven-compiler-plugin
                3.8.1
                
                    16
                    16
                    true
                    ${java.home}binjavac
                    100m
                    200m

                    
                    
                        -verbose
                        -Xlint:all,-options,-path