Spring 2.5到3.2升级错误:bean类的属性'commandClass'无效

时间:2013-07-31 19:51:16

标签: spring-3

我是Spring新手,正在将Spring 2.5网络应用升级到3.2.3。我在应用程序的首页导航时出错。 错误是bean类的Invalid属性'commandClass'。这个网络应用已经运行了大约5年,所以 问题必须是Spring 2.5到3.2的变化。我必须有一些错误,有任何想法吗?

完整错误是:

    Error creating bean with name '/new_candidate.html' defined in ServletContext resource [/WEB-INF/webapp-servlet.xml]:

设置属性值时出错;  嵌套异常是org.springframework.beans.NotWritablePropertyException:  bean类[org.myorg.app.web.ScoreChangeController]的属性'commandClass'无效:  Bean属性“commandClass”不可写或具有无效的setter方法。  setter的参数类型是否与getter的返回类型匹配?

这是来自webapp-sevlet.xml的bean def:

<bean name="/new_candidate.html" class="org.myorg.app.web.ScoreChangeController" scope="session">
    <property name="commandClass" value="org.myorg.app.model.Database"/>
    <property name="formView" value="generic"/>
    <property name="candidateManager" ref="candidateManager"/>
</bean>

控制器是:

package org.myorg.app.web;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.myorg.app.model.Database;
import org.myorg.app.service.CandidateManager;

import org.springframework.web.servlet.ModelAndView;

import org.springframework.web.servlet.view.RedirectView;
import org.springframework.web.bind.ServletRequestDataBinder;
import org.springframework.validation.BindException;
import org.springframework.web.util.WebUtils;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;


public class ScoreChangeController 
 {

private CandidateManager candidateManager;


protected Object formBackingObject(HttpServletRequest request) throws Exception {

    Database defaultDatabase = new Database();
    defaultDatabase.setApptNo("16 digits");
    defaultDatabase.setAccessionNo("8 digits");
    defaultDatabase.setTstPkgId("12345678912345678912345");
    return defaultDatabase;
}


 protected void initBinder(HttpServletRequest request, ServletRequestDataBinder binder) throws Exception {
        Database database = (Database)binder.getTarget();
    }

public CandidateManager getCandidateManager() {
    return candidateManager;
}

public void setCandidateManager(CandidateManager candidateManager) {
    this.candidateManager = candidateManager;
}

public ModelAndView onSubmit(HttpServletRequest req, HttpServletResponse res, Object command, BindException errors) throws Exception {

    if(WebUtils.hasSubmitParameter(req, "retrieve"))
    {
        candidateManager.retrieveData((Database)command);

    }
    return new ModelAndView(new RedirectView("success.jsp"));

}

}

1 个答案:

答案 0 :(得分:1)

您正在尝试在commandClass bean中注入属性ScoreChangeController,但我无法在该控制器中看到具有该名称的任何属性,而且它也不是任何特定控制器的子类所以也没有继承的机会。

解决方案:从commandClass bean中删除ScoreChangeController属性的注入。

<bean name="/new_candidate.html" class="org.myorg.app.web.ScoreChangeController" scope="session">
<property name="formView" value="generic"/>
<property name="candidateManager" ref="candidateManager"/>

或者在ScoreChangeController中创建一个名为as的新属性,并为其创建setter和getter。