Struts 的问题！关于Action！！

pittzhao 2004-07-21 10:09:09

下面代码中thorw 那行在Jbuilder 中报错为何阿？请教
---------------
package strutsdemo;

import org.apache.struts.action.*;
import javax.servlet.http.*;

public class myAction
extends Action {
public ActionForward perform(ActionMapping actionMapping,
ActionForm actionForm,
HttpServletRequest httpServletRequest,
HttpServletResponse httpServletResponse) {
/**@todo: complete the business logic here, this is just a skeleton.*/
myActionForm myActionForm = (myActionForm) actionForm;
String sA = myActionForm.getFieldA();
String sB = myActionForm.getFieldB();
myActionForm.setFieldResult(sA + sB);
return (actionMapping.findForward("input"));

throw new java.lang.UnsupportedOperationException("Method perform() not yet implemented.");
}
}

...全文

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zf1231 2004-07-22

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同意楼上的，把throws 注释掉

noscar 2004-07-22

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已经return了呀
下面抛异常没用了

yeshucheng 2004-07-22

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最好这样写：
package strutsdemo;

import org.apache.struts.action.*;
import javax.servlet.http.*;

public class myAction
extends Action {
public ActionForward perform(ActionMapping actionMapping,
ActionForm actionForm,
HttpServletRequest httpServletRequest,
HttpServletResponse httpServletResponse) {
/**@todo: complete the business logic here, this is just a skeleton.*/
try{
myActionForm myActionForm = (myActionForm) actionForm;
String sA = myActionForm.getFieldA();
String sB = myActionForm.getFieldB();
myActionForm.setFieldResult(sA + sB);
return (actionMapping.findForward("input"));
}
catch(Exception e){
ActionErrors errors = new ActionErrors();
errors.add("GLOBAL_ERROR", new ActionError("...."));
saveErrors(httpServletRequest, errors);
return (new ActionForward(actionMapping.getInput()));
}

}

niyboy 2004-07-22

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删除这段代码，就OK了；

throw new java.lang.UnsupportedOperationException("Method perform() not yet implemented.");

fantasyCoder 2004-07-22

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去掉
throw new java.lang.UnsupportedOperationException("Method perform() not yet implemented.");

RobertHooke 2004-07-21

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这是一篇台湾人写的文章吧，楼主好像没抄对哦

linsr 2004-07-21

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public ActionForward perform(ActionMapping actionMapping,
ActionForm actionForm,
HttpServletRequest httpServletRequest,
HttpServletResponse httpServletResponse) throws Exception
后面抛出错误就可以了

petertangh 2004-07-21

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完全同意 linsr()

siyue 2004-07-21

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throw new java.lang.UnsupportedOperationException("Method perform() not yet implemented.");

不可能运行到这行代码,上面已经有return (actionMapping.findForward("input"));
而且这一行根本没必要再留着,这是生成代码时生成的.

ecaol 2004-07-21