简单asp.net跨域提交表单详细做法

<html:form action="/register1.do" method="post">
    username:<html:text property="username"/>
    <html:errors property="username" />
    password:<html:text property="password"/>
    <html:errors property="password" />
    <input type="hidden" name="page" value="1"/>
    <html:submit/>

public actionerrors validate(actionmapping mapping,
            https教程ervletrequest request) {
        actionerrors errors=new actionerrors();
        if (request.getparameter("page").equals("1")) {
            if ("".equals(request.getparameter("username"))) {
                errors.add("username",new actionmessage("usernamenull"));
            }
            if ("".equals(request.getparameter("password"))) {
                errors.add("password", new actionmessage("passwordnull"));
            }
        }
        if (request.getparameter("page").equals("2")) {
            if ("".equals(request.getparameter("email"))) {
                errors.add("email", new actionmessage("emailnull"));
            }
        }
        return errors;
    }

personalform personalform = (personalform) form;// todo auto-generated method stub
        system.out.println(personalform.getusername());
        system.out.println(personalform.getpassword());
        return mapping.findforward("step2");

personalform personalform = (personalform) form;// todo auto-generated method stub
        system.out.println(personalform.getusername());
        system.out.println(personalform.getpassword());
        system.out.println(personalform.getemail());
        return null;