JAVA中动态编译的简单使用

一、引用库

pom文件中申明如下：

    <dependencies><!-- https://mvnrepository.com/artifact/junit/junit --><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.12</version><scope>test</scope></dependency><!-- https://mvnrepository.com/artifact/com.github.henryhuang/dynamiccompiler --><dependency><groupId>com.github.henryhuang</groupId><artifactId>dynamiccompiler</artifactId><version>0.1.0</version></dependency></dependencies>

 

二、测试代码

import com.github.henryhuang.dynamiccompiler.ClassGenerator;
import org.junit.Test;import java.lang.reflect.Method;public class HelloTest {@Testpublic void test() {ClassGenerator builder = new ClassGenerator(".");try {Class<?> testclass = builder.generate("TestClass", "" +"public class TestClass{" +"   public static String execute(String[] args){" +"       System.out.println(\"Test!\"); " +"       return args[0];" +"   }" +"}");Method method = testclass.getMethod("execute", String[].class);for (int i = 0; i < 100; i++) {String[] params = {"宋柱柱" + i, "def"};Object result = method.invoke(null, (Object) params);System.out.println("result:" + result);}} catch (Exception ex) {ex.printStackTrace();}}
}

 

三、运行结果