本实例是GODU动态脚本的一个技术简化版，演示了java调groovy， groovy又调java的运行过程。测试用例：

package  com.boco.godu.integration; 

import  java.util.HashMap; 
import  java.util.Map; 
import  org.apache.log4j.Logger; 
import  org.junit.After; 
import  org.junit.AfterClass; 
import  org.junit.Before; 
import  org.junit.BeforeClass; 
import  org.junit.Test; 
import  com.boco.godu.gapi.ConnManager; 
import  com.boco.godu.gapi.Constants; 
import  com.boco.godu.gapi.IConnection; 
import  com.boco.godu.gapi.IResult; 

public  class  SimpleExpScriptTest { 
   private  static  final  Logger  logger  = Logger 
    . getLogger (SimpleExpScriptTest.  class  ); 
   private  IConnection  conn ; 

  @Before 
   public  void  setUp()  throws  Exception { 
    conn  = ConnManager. getDataConn ( "10.0.2.47" , 1234, 
      "< aa ><7001><administrator><autocmd>" ,  "goduapp" , 
     Constants.  TYPE_DATA_CMD_SYNC  , 5); 
 } 

  @After 
   public  void  tearDown()  throws  Exception { 
    conn .close(); 
 } 

  @Test 
   public  void  testImport()  throws  Exception { 
   Map<String, String> params =  new  HashMap<String, String>(); 
   params.put(  "cmd1" ,  "ls" ); 
   params.put(  "id" , 3); 

   IResult result =  conn .execScript( "ImportEx" , params); 
 } 
}

Java代码：IConnection.java

package  com.boco.godu.gapi; 
public  interface  IConnection { 
 ......// other method definition 
   public  IResult execScript (String name, Map<String, Object> params)  
     throws  Exception; 
}

GoduDataConnection.java

package  com.boco.godu.gapi.conn; 
public  class  GoduDataConnection  extends  AbstractConnection { 
......// Other IConnection Methods 
   public  IResult execScript(String name, Map<String, Object> params)  
     throws  Exception { 
  String[] roots =  new  String[] {  "e:/MyDoc/Project/GoduScript"  }; 
  GroovyScriptEngine gse =  new  GroovyScriptEngine(roots); 
  Binding binding =  new  Binding(); 
   for  (Entry<String, Object> item : params.entrySet()) { 
   binding.setVariable(item.getKey(), item.getValue()); 
  } 
  GapiIosessionUtils giu =  new  GapiIosessionUtils(); 
  binding.setVariable(  "giu" , giu ); 
  gse.run(name, binding); 
  System.  out  .println(binding.getVariable(  "result" )); // 运行结果是这里输出“11”，即3*2+5。 
   return  null  ; 
 } 


}

GapiIosessionUtils.java

package  com.boco.godu.gapi.util; 
 public  class  GapiIosessionUtils { 
 ......// other method 
   public  int  testM(  int  x,  int  y) { 
    return  x * 2 + y; 
  } 
}

groovy代码：e:\MyDoc\Project\GoduScript\ImportEx

def send(cmd){ 
  def result = giu.testM(cmd,5); 
  return result; 
} 
result = send(id)

运行过程：测试用例 -> GoduDataConnection.java -> groovy代码 -> GapiIosessionUtils.java；

总结

binding的setVariable中定义的变量，如giu是com.boco.godu.gapi.util.GapiIosessionUtils对象，id是int型数据，在groovy脚本里直接使用，可以出现在脚本的任何地方，且无需声明类型，无需使用import导入定义该变量的类，例如对于giu来说，如果在java代码中，需要 import com.boco.godu.gapi.util.GapiIosessionUtils。

Java和Groovy脚本互相调用实例

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