我有一个带有 RichFaces、Spring Web Flow 和 Hibernate 的 Java 动态 Web 模块项目（2.5 版）。该项目部署在 Apache Tomcat 中（服务器中为 6.0.20，我的机器中为 6.0.37 和 7.0.39，用于开发目的）。我经常收到此错误：
Caused by: javax.el.ELException: /WEB-INF/flows/monitoring/monitor.xhtml @139,114 rendered="#{search.journeyRecord.valid}": Cannot convert valid of type class java.lang.String to class java.lang.Integer
Valid是JourneyRecord类的瞬态布尔属性。其声明如下所示：
@Transient
public boolean isValid() {
if (search != null) {
return search.getStatus() == Search.WITH_INSURANCE_COVER;
} else {
Calendar calendar = Calendar.getInstance();
calendar.add(Calendar.HOUR, -12);
return calendar.after(registrationDate);
}
}
我将我的 jsf-facelets Maven 包更新到了 1.1.15 版。
搜索豆：
@Entity
public class Pesquisa implements Serializable {
...
private char status;
...
/**
* @return the status
*/
public char getStatus() {
return status;
}
/**
* @param status
* the status to set
*/
public void setStatus(char status) {
this.status = status;
}
...
}
JourneyRecord Bean：
@Entity
public class RegistroViagem implements Serializable{
...
private Date registrationDate;
...
/**
* @return the registrationDate
*/
public Date getRegistrationDate() {
return registrationDate;
}
/**
* @param registrationDate
* the registrationDate to set
*/
public void setRegistrationDate(Date registrationDate) {
this.registrationDate = registrationDate;
}
...
@Transient
public boolean isValid() { ... }
...
}
JSF：
...
<rich:column style="text-align:center;">
<f:facet name="header">Protocol Number</f:facet>
<h:outputText value="#{search.journeyRecord.journeyNumber}" rendered="#{search.journeyRecord.valid}" />
</rich:column>
...