Insert.JSP代碼如下：
<%@ page contentType="text/Html;charset=UTF-8" language="Java"%>
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="Html" %>
<%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %>
<html:Html locale="true">
<head>
<Html:base />
<title>insert.JSP</title>
</head>
<body>
<Html:form action="insert" method="post">
<bean:message key="label.name"/><Html:text property="name" />
<bean:message key="label.phone"/><Html:text property="phone"/>
<bean:message key="label.address"/><Html:text property="address"/>
<html:submit ><bean:message key="modify.add"/></Html:submit>
<html:reset><bean:message key="button.reset"/></Html:reset>
</Html:form>
<Html:errors/>
</body>
</html:Html>
PrepareInsertAction代碼如下：
public class PrepareInsertAction extends Action {
public ActionForward execute(
ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response) {
System.out.print("hello PrepareInsertAction");
//創建一個新的令牌
saveToken(request);
return mapping.findForward("inserttoken");
}
}
InsertAction代碼如下：
public class InsertAction extends Action {
public ActionForward execute(
ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response) throws Exception {
ModifyForm modifyForm = (ModifyForm) form;
//得到token
String token_request =request.getParameter("org.apache.struts.taglib.Html.TOKEN");
//打出來看看是什麼東東
System.out.println("token in request is:"+ token_request);
ActionErrors errors = new ActionErrors();
//判斷token是否有效,如果為假證明有重復提交，聲明一個錯誤信息，並反饋出來
if(!isTokenValid(request)){
errors.add("insettoken",new ActionError("error.invalid.token"));
saveErrors(request, errors);
saveToken(request);
return (new ActionForward(mapping.getInput()));
}
//當用戶首次提交時返!isTokenValid()返回true
else{
resetToken(request);
}
int result=new ListBean().add(modifyForm);
if(result==1){
return mapping.findForward("addlist");
}else{
return mapping.findForward("error");
}
}
}
ModifyForm代碼如下：
public class ModifyForm extends ActionForm {
public void reset(ActionMapping mapping, HttpServletRequest request) {
this.address=null;
this.name=null;
this.phone=null;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
}
Struts-config.XML配置如下：
<struts-config>
<data-sources />
<form-beans >
<form-bean name="modifyForm" type="com.lyx.struts.form.ModifyForm" />
</form-beans>
<global-exceptions />
<global-forwards>
<forward name="inserttoken" path="/tokeninsert.JSP"/>
</global-forwards>
<action-mappings >
<!--插入記錄時token檢驗第一個跳的action -->
<action path="/prepareInsert" type="com.lyx.struts.action.PrepareInsertAction" />
<!--插入記錄時token檢驗後的第二個action -->
<action
attribute="modifyForm"
input="/tokeninsert.JSP"
name="modifyForm"
path="/insert"
scope="request"
type="com.lyx.struts.action.InsertAction" />
</action-mappings>
<message-resources parameter="com.lyx.struts.ApplicationResources" />
</struts-config>
Applicationresources.propertIEs配置如下：
error.invalid.token=repeatsubmit
label.user=username
lable.phone=phone
label.address=address
modify.add=add
label.tokeninsert=tokeninsert
button.reset=reset
