struts in action 中有一段程序form标签改html标签出现的问题

Question

Register.jsp
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %><html:form action="register.do">
    UserName:<html:text property="username" /><br>
    enter password:<html:password property="password1" /><br>
    re-enter password:<html:password property="password2" /><br>
    <html:submit value="Register" />
</html:form>struts-config.xml
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.1//EN" "http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd">
<struts-config>
    <data-sources />
    <form-beans><form-bean name="RegisterForm" type="app.RegisterForm" /></form-beans>
    <global-exceptions />
    <global-forwards />
    <action-mappings>
        <action path="/register"
                type="app.RegisterAction" 
                name="RegisterForm" 
                scope="session"
                validate="false" 
                input="/Register.jsp"
          >
        <forward name="success" path="/success.html" redirect="false" />
        <forward name="failure" path="/failure.html" redirect="false" />
        </action>
    </action-mappings>
    <controller />
    <message-resources parameter="com.youcompany.struts.ApplicationResources" />
</struts-config>错误：javax.servlet.ServletException: No getter method for property: "username" of bean: "app.RegisterForm"

Answer 1

提示RegisterForm这个类里面没有username属性，及其get set方法

Answer 2

是的，你检查一下RegisterForm这个formbean中有没有username属性要是没有加上就可以了（包括它的get,set方法）

Answer 3

看到GET和SET 就应该想到的是 JAVABEAN吧？？
STRUTS里应该叫 FORM吧

Answer 4

有啊  
package app;import org.apache.struts.action.*;public class RegisterForm  extends ActionForm{

protected String username = null;
protected String password1= null;
protected String password2= null;

public String getUserName(){
return this.username;
}
    public String getPassWord1(){
     return this.password1;
    }
    public String getPassword2(){
     return this.password2;
    }
    
    public void setUserName(String username){
     this.username = username;
    }
    public void setPassWord1(String password1){
     this.password1 = password1;
    }
    public void setPassWord2(String password2){
     this.password2 = password2;
    }
}

Answer 5

public String getUserName(){
return this.username;
} 
大小写问题getUserName-----getUsername