struts2 类型转换的问题
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yi_liu
2009-08-14
我正跟着视频学习struts2,可是配置和老师说的一样.为什么会出现错误?代码和错误信息如下
struts.xml <action name="register" class="com.test.action.RegisterAction"> <result name="success">/inputcheck/success.jsp</result> <result name="input">/inputcheck/register2.jsp</result> </action> register2.jsp
<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'register2.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<s:form action="register" method="post">
<s:textfield name="username" label="username"></s:textfield>
<s:password name="password" label="password"></s:password>
<s:password name="repassword" label="repassword"></s:password>
<s:textfield name="age" label="age"></s:textfield>
<s:textfield name="birthday" label="birthday"></s:textfield>
<s:textfield name="graduation" label="graduation"></s:textfield>
<s:submit label="submit"></s:submit>
</s:form>
</body>
</html>
RegisterAction.java
package com.test.action;
import java.util.Calendar;
import java.util.Date;
import com.opensymphony.xwork2.ActionSupport;
public class RegisterAction extends ActionSupport{
private String username;
private String password;
private String repassword;
private int age;
private Date birthday;
private Date graduation;
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public Date getBirthday() {
return birthday;
}
public void setBirthday(Date birthday) {
this.birthday = birthday;
}
public Date getGraduation() {
return graduation;
}
public void setGraduation(Date graduation) {
this.graduation = graduation;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getRepassword() {
return repassword;
}
public void setRepassword(String repassword) {
this.repassword = repassword;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String execute() throws Exception{
return SUCCESS;
}
public void validate() {
if(null == username || username.length() < 6 || username.length() > 10) {
this.addFieldError("username","用户名不合法!");
}
if(null == password || password.length() <6 || password.length() > 10) {
this.addFieldError("password", "密码不合法!");
} else if(null == repassword || repassword.length() <6 || repassword.length() > 10) {
this.addFieldError("repassword", "重复密码不合法!");
} else if(!password.equals(repassword)) {
this.addFieldError("password", "两次密码不一致!");
}
if(age < 0 || age >150) {
this.addFieldError("age", "年龄不合法!");
}
if(null == birthday) {
this.addFieldError("birthday", "生日不能为空!");
}
if(null == graduation) {
this.addFieldError("graduation", "毕业时间不能为空!");
}
if(null != birthday && null != graduation) {
Calendar c1 = Calendar.getInstance();
c1.setTime(birthday);
Calendar c2 = Calendar.getInstance();
c2.setTime(graduation);
if (!c1.before(c2)) {
this.addFieldError("birthday", "毕业时间不能早于生日!");
}
}
}
}
错误信息如下: ognl.MethodFailedException: Method "setAge" failed for object com.test.action.RegisterAction@14aa2db [java.lang.NoSuchMethodException: setAge([Ljava.lang.String;)] at ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:823) at ognl.OgnlRuntime.setMethodValue(OgnlRuntime.java:964) at ognl.ObjectPropertyAccessor.setPossibleProperty(ObjectPropertyAccessor.java:75) at ognl.ObjectPropertyAccessor.setProperty(ObjectPropertyAccessor.java:131) at com.opensymphony.xwork2.ognl.accessor.ObjectAccessor.setProperty(ObjectAccessor.java:28) at ognl.OgnlRuntime.setProperty(OgnlRuntime.java:1656) at com.opensymphony.xwork2.ognl.accessor.CompoundRootAccessor.setProperty(CompoundRootAccessor.java:50) at ognl.OgnlRuntime.setProperty(OgnlRuntime.java:1656) at ognl.ASTProperty.setValueBody(ASTProperty.java:101) at ognl.SimpleNode.evaluateSetValueBody(SimpleNode.java:177) at ognl.SimpleNode.setValue(SimpleNode.java:246) at ognl.Ognl.setValue(Ognl.java:476) at com.opensymphony.xwork2.ognl.OgnlUtil.setValue(OgnlUtil.java:192) at com.opensymphony.xwork2.ognl.OgnlValueStack.setValue(OgnlValueStack.java:155) at com.opensymphony.xwork2.ognl.OgnlValueStack.setValue(OgnlValueStack.java:143) at com.opensymphony.xwork2.interceptor.ParametersInterceptor.setParameters(ParametersInterceptor.java:273) at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:187) at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195) at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:148) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:93) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:235) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:89) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:128) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) at org.apache.struts2.interceptor.ProfilingActivationInterceptor.intercept(ProfilingActivationInterceptor.java:104) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:267) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:126) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:138) at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:148) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:128) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:176) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52) at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:468) at org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:395) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689) at java.lang.Thread.run(Thread.java:595) /-- Encapsulated exception ------------\ java.lang.NoSuchMethodException: setAge([Ljava.lang.String;) at ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:810) at ognl.OgnlRuntime.setMethodValue(OgnlRuntime.java:964) at ognl.ObjectPropertyAccessor.setPossibleProperty(ObjectPropertyAccessor.java:75) at ognl.ObjectPropertyAccessor.setProperty(ObjectPropertyAccessor.java:131) at com.opensymphony.xwork2.ognl.accessor.ObjectAccessor.setProperty(ObjectAccessor.java:28) at ognl.OgnlRuntime.setProperty(OgnlRuntime.java:1656) at com.opensymphony.xwork2.ognl.accessor.CompoundRootAccessor.setProperty(CompoundRootAccessor.java:50) at ognl.OgnlRuntime.setProperty(OgnlRuntime.java:1656) at ognl.ASTProperty.setValueBody(ASTProperty.java:101) at ognl.SimpleNode.evaluateSetValueBody(SimpleNode.java:177) at ognl.SimpleNode.setValue(SimpleNode.java:246) at ognl.Ognl.setValue(Ognl.java:476) at com.opensymphony.xwork2.ognl.OgnlUtil.setValue(OgnlUtil.java:192) at com.opensymphony.xwork2.ognl.OgnlValueStack.setValue(OgnlValueStack.java:155) at com.opensymphony.xwork2.ognl.OgnlValueStack.setValue(OgnlValueStack.java:143) at com.opensymphony.xwork2.interceptor.ParametersInterceptor.setParameters(ParametersInterceptor.java:273) at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:187) at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195) at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:148) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:93) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:235) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:89) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:128) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) at org.apache.struts2.interceptor.ProfilingActivationInterceptor.intercept(ProfilingActivationInterceptor.java:104) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:267) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:126) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:138) at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:148) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:128) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:176) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52) at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:468) at org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:395) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689) at java.lang.Thread.run(Thread.java:595) \--------------------------------------/ 它提示的方法我写了,可是为什么还是报错了呢? |
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happyblue
2009-08-16
你看异常说明啊。。。
ognl.MethodFailedException: Method "setAge" failed for object com.test.action.RegisterAction@14aa2db [java.lang.NoSuchMethodException: setAge([Ljava.lang.String;)] 参数类型不一样，提交的age是string类型的，而你定义的是int类型，所以报错了啊 你把age也改为string类型就不会错了 |
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yelang2009
2009-08-24
struts2有默认的类型转的确，基本类型都可以转换的，只是你在前台页面上不能写字符串了， 写12 可以直接转成整形12 你写个abc肯定会错的，我想你不会有这样的错吧，呵呵，还有你有struts2.1。*的话包有点问题，要多加几个名，那几个包我不知道了，你在google查一下，有人会说的！！还没有成功的话，找我一起讨论一下吧！！！
|
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yi_liu
2009-09-01
yelang2009 写道 struts2有默认的类型转的确，基本类型都可以转换的，只是你在前台页面上不能写字符串了， 写12 可以直接转成整形12 你写个abc肯定会错的，我想你不会有这样的错吧，呵呵，还有你有struts2.1。*的话包有点问题，要多加几个名，那几个包我不知道了，你在google查一下，有人会说的！！还没有成功的话，找我一起讨论一下吧！！！
没错,包是导进去了,不导那几个包的话一运行就出错.我是跟着老师的代码走的.我想可能还是和版本有关系...后来我干脆就不用基本类型了,改成Integer就不出错了 |
 |
younglibin
2009-09-02
boolean和Boolean：完成字符串和布尔值之间的转换；
char和Character：完成字符串和字符之间的转换； int和Integer:完成字符串和整形之间的转换； long和Long：完成字符串和长整形之间的转换； flota和Float：完成字符串和单精度浮点值之间的转换； double和Double：完成字符串和双精度浮点值的转换； Date：完成字符串和日期类型之间的转换！； 数组：默认情况下，数组元素是字符串，如果用户提供了自定义类型转换器，也可以是其他复合类型转换器； 集合：默认情况下，假定集合元素为String，并创建一个新的ArrayList封装所有的字符串； 这些是 struts2 内建类型的转换！ 还有你的jsp最好写成： <s:textfield name="RegisterAction.username" label="username"></s:textfield> <s:password name="RegisterAction.password" label="password"></s:password> <s:password name="RegisterAction.repassword" label="repassword"></s:password> <s:textfield name="age" label="age"></s:textfield> <s:textfield name="RegisterAction.birthday" label="birthday"></s:textfield> <s:textfield name="RegisterAction.graduation" label="graduation"></s:textfield> 为什么不单独定义一个User类，来放User的属性？ |
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younglibin
2009-09-02
其实视频好多配置都是他们配好的，如果不从头看！会错过配置过程，有时出现一些莫名其妙的错误！对于初学者来说，看过视频后，仔细研究代码！而不是多看视频！
|
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yi_liu
2009-09-04
younglibin 写道 其实视频好多配置都是他们配好的，如果不从头看！会错过配置过程，有时出现一些莫名其妙的错误！对于初学者来说，看过视频后，仔细研究代码！而不是多看视频！
多谢younglibin,因为初学还有好多需要学习..谢谢指点~ |
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longshao_feng
2010-02-12
楼主，我发现我看的视频跟你的一样。。。
一起加油吧 |
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小男孩
2010-05-14
 跟你 一样，偶也是被这个问题纠结了，呵呵，我觉得应该在客户端添加JS验证吧，把在年龄的地方输入String类型的排除掉。。。。
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ka520888
2010-05-14
努力学习吧。。自己多写代码才是硬道理
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