我尝试发布一个简单的表格:
<s:form action="register">
<s:textfield name="lastname"></s:textfield>
<s:submit></s:submit>
</s:form>
动作 :
public class RegisterAction extends ActionSupport {
private String lastname;
public String execute() {
System.out.println("register");
}
public String getLastname() {
return lastname;
}
public void setLastname(String lastname) {
this.lastname = lastname;
}
}
该操作输出寄存器字符串,但从不调用资源库。
为什么从不叫二传手?即使我直接在浏览器中键入操作http://localhost:8686/register.action?lastname=sdjh
也不会调用 setter,但execute
方法输出"寄存器"。
我在您的代码中没有看到任何缺失的部分。我试图复制相同的内容,我发现它工作得很好。以下是我的代码。
网络.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" version="3.1">
<filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
支柱.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
<constant name="struts.enable.DynamicMethodInvocation" value="false" />
<constant name="struts.devMode" value="true" />
<package name="default" namespace="/" extends="struts-default">
<action name="register" class="com.tmp.RegisterAction">
<result>one.jsp</result>
</action>
</package>
</struts>
索引.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
<s:form action="register">
<s:textfield name="lastname"></s:textfield>
<s:submit></s:submit>
</s:form>
</body>
</html>
注册操作
package com.tmp;
import com.opensymphony.xwork2.Action;
import com.opensymphony.xwork2.ActionSupport;
public class RegisterAction extends ActionSupport {
private static final long serialVersionUID = 1L;
String lastname;
public String getLastname() {
return lastname;
}
public void setLastname( String lastname ) {
this.lastname = lastname;
}
@Override
public String execute() throws Exception {
// TODO Auto-generated method stub
return Action.SUCCESS;
}
}
一.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
<s:property value="lastname"/>
</body>
</html>