查看示例。它使用jsr223,但你會明白。我將MyClass的一個實例傳遞給rhino,它會修改它(通過java方法調用),並最終添加另一個元素來列出。
package lv.test;
import java.util.ArrayList;
import java.util.List;
import javax.script.Bindings;
import javax.script.ScriptContext;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
import javax.script.ScriptException;
public class MyClass {
private int field;
public int getField() {
return field;
}
public void setField(final int field) {
this.field = field;
}
public String toString() {
return String.format("{%d}", field);
}
public static void main(String[] args) throws ScriptException {
final ScriptEngineManager manager = new ScriptEngineManager();
final ScriptEngine e = manager.getEngineByName("js");
final Bindings b = e.getBindings(ScriptContext.ENGINE_SCOPE);
final List<MyClass> somelist = new ArrayList<MyClass>();
somelist.add(new MyClass());
b.put("somelist", somelist);
final StringBuilder script = new StringBuilder()
.append("function abc(x,y) { return x+y+new java.lang.Integer(2).intValue(); }")
.append("somelist.get(0).setField(abc(2,3));")
.append("somelist.add(new Packages.lv.test.MyClass()); somelist.get(1).setField(888);");
e.eval(script.toString());
System.out.println(somelist); // [{7}, {888}]
}
}
什麼導入javascript?你的java類? – MaVRoSCy 2012-07-14 10:40:37
@MaVRoSCy:是的,我想在JavaScript中使用我自己的類。序列化爲JSON是我的一個想法... – hans 2012-07-14 11:04:08