jsp中的PropertyNotFoundException

Question

我的应用程序中有这个错误吗？

javax.el.PropertyNotFoundException: Property 'survey_id' not found on type com.moh.forms.MOH731
javax.el.BeanELResolver$BeanProperties.get(BeanELResolver.java:229)
javax.el.BeanELResolver$BeanProperties.access$400(BeanELResolver.java:206)
javax.el.BeanELResolver.property(BeanELResolver.java:317)
javax.el.BeanELResolver.getValue(BeanELResolver.java:85)

这是我的MOH731.java

@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private int survey_id;

public MOH731 (int survey_id, String uname)

@Override
public String toString()
{
return ToStringBuilder.reflectionToString(this);
}
public Integer getId() {
return survey_id;
}

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

您的帮助将不胜感激。

Answer 1

你的getter & setter的名字是错的。

按照惯例，这必须是：

public Integer getSurvey_id() {
   return survey_id;
}

public void setSurvey_id(Integer survey_id) {
   this.survey_id=survey_id;
}

Answer 2

您的getter和setter命名约定应该与Id属性相同。

要么将private int survey_id;更改为private int Id;

或

public Integer getId() {
return survey_id;
}

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

至

public Integer getSurvey_id() {
   return survey_id;
}

public void setSurvey_id(Integer survey_id) {
   this.survey_id=survey_id;
}