SSH提示ognl.OgnlException: target is null for setProperty

[awfiitihc]

找了好久都不知道错在哪里
错误信息：

ognl.OgnlException: target is null for setProperty(null, "action", [Ljava.lang.String;@d37bdd)
at ognl.OgnlRuntime.setProperty(OgnlRuntime.java:2309)
...
2013-01-08 13:06:000,472 [com.opensymphony.xwork2.ognl.OgnlValueStack]-[WARN] Error setting expression 'user.usercode' with value '[Ljava.lang.String;@1daabbf'
ognl.OgnlException: usercode [java.lang.IllegalArgumentException: argument type mismatch]
at ognl.ObjectPropertyAccessor.setPossibleProperty(ObjectPropertyAccessor.java:103)
at ognl.ObjectPropertyAccessor.setProperty(ObjectPropertyAccessor.java:162)
...

2013-01-08 13:06:000,475 [com.opensymphony.xwork2.ognl.OgnlValueStack]-[WARN] Error setting expression 'user.username' with value '[Ljava.lang.String;@1e33b76'
ognl.OgnlException: username [java.lang.IllegalArgumentException: argument type mismatch]
at ognl.ObjectPropertyAccessor.setPossibleProperty(ObjectPropertyAccessor.java:103)
at ognl.ObjectPropertyAccessor.setProperty(ObjectPropertyAccessor.java:162)
...

struts.xml:
<struts>
    <constant name="struts.objectFactory" value="org.apache.struts2.spring.StrutsSpringObjectFactory"></constant>
    
    <package name="user" extends="struts-default" >
        <action name="user?*" class="account" method="{1}">
            <result name="success">/success.jsp</result>
        </action>
    </package>
    
</struts>

applicationContext.xml:
	<beans default-autowire="byName">
	<bean id="user" class="com.tsai.space.vo.UserVO" />		   
	<bean id="account" class="com.tsai.space.controller.Account" /> 
</beans>

action类Account：

    public class Account extends ActionSupport {
    public UserVO user;
    /**
     * 
     */
    private static final long serialVersionUID = 5592712600588043181L;
    
    public Account() {
        super();
    }
    public UserVO getUser() {
        return user;
    }
    public void setUser(UserVO user) {
        this.user = user;
    }

JSP：

    <s:form action="/user/user?register.action" method="post" >
    <s:textfield name="user.username" label="用户名"></s:textfield><br>
    <s:textfield name="user.usercode" label="密码"></s:textfield><br>
    <s:submit value="注册" ></s:submit>
    </s:form>

[傲雪kimi]

楼主可否贴一下User这个类

[傲雪kimi]

引用 1 楼 ahuter9 的回复:

楼主可否贴一下User这个类

不好意思是UserVO

[awfiitihc]

UserVO
public class UserVO implements Serializable{
	/**
	 * 
	 */
	private static final long serialVersionUID = -7468298057329693235L;
	private Integer id;
	private String userName;
	private String userCode;
	private Integer userAge;
	private boolean userSex;
	private String userBirth;
	private String userMail;
	public UserVO() {
		super();
	}
	
	public Integer getId() {
		return id;
	}

	public void setId(Integer id) {
		this.id = id;
	}

	public String getUserName() {
		return userName;
	}
	public void setUserName(String userName) {
		this.userName = userName;
	}
	public String getUserCode() {
		return userCode;
	}
	public void setUserCode(String userCode) {
		this.userCode = userCode;
	}
	public Integer getUserAge() {
		return userAge;
	}
	public void setUserAge(Integer userAge) {
		this.userAge = userAge;
	}
	public boolean isUserSex() {
		return userSex;
	}
	public void setUserSex(boolean userSex) {
		this.userSex = userSex;
	}
	public String getUserBirth() {
		return userBirth;
	}

	public void setUserBirth(String userBirth) {
		this.userBirth = userBirth;
	}

	public String getUserMail() {
		return userMail;
	}
	public void setUserMail(String userMail) {
		this.userMail = userMail;
	}
	
	
}

[让我抽完最后一支烟]

<s:textfield name="user.username" label="用户名"></s:textfield><br> private String userName; private String userCode; 看看是不是这块不一致

[子晓聊技术]

你把 <s:form action="/user/user?register.action" method="post" >这句话去掉.action，改成这样 <s:form action="/user/user?register" method="post" > 试一试

[caipan1234567]

user.usercode 改成 user.userCode

[Cute_Tiger]

<s:textfield name="user.username" label="用户名"></s:textfield><br> <s:textfield name="user.usercode" label="密码"></s:textfield><br> 这里的username，usercode和你的javaBean里面的大小写都不一样，注意到了没

[longzl123]

没有get/set 那个user对象

[bobo1232]

有问题