[英]Error in using Expression Language in Spring
无法将[java.lang.String]类型的属性值转换为属性“ item”的必需类型[com.spring.first.Item]; 嵌套的异常为java.lang.IllegalArgumentException:无法将属性“项目”的[java.lang.String]类型的值转换为所需的[com.spring.first.Item]类型:没有找到匹配的编辑器或转换策略
server.java
package com.spring.first;
public class Server {
private Item item;
private String itemName;
public Item getItem()
{
return item;
}
public String getItemName()
{
return itemName;
}
public void setItem(Item item)
{
this.item=item;
}
public void setItemName(String str)
{
this.itemName=str;
}
@Override
public String toString()
{
return "Server [item ="+item+", itemName ="+itemName+"]";
}
}
Item.java
public class Item {
private String name;
private int qty;
public String getName()
{
return name;
}
public int getQty()
{
return qty;
}
public void setName(String name)
{
this.name=name;
}
public void setQty(int x)
{
this.qty=x;
}
@Override
public String toString()
{
return "Item [ name ="+name+", Qty ="+qty+"];";
}
}
我的配置文件
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
<bean id="itemBean" class="com.spring.first.Item">
<property name="name" value="itemA" />
<property name="qty" value="10" />
</bean>
<bean id="serverBean" class="com.spring.first.Server">
<property name="item" value="#{itemBean}" />
<property name="itemName" value="#{itemBean.name}" />
</bean>
</beans>
我正在使用Spring 2.5.6。
尝试如下更改配置文件
<bean id="itemBean" class="com.spring.first.Item">
<property name="name" value="itemA" />
<property name="qty" value="10" />
</bean>
<bean id="serverBean" class="com.spring.first.Server">
<property name="item" ref="itemBean" />
<property name="itemName" value="itemBean.name" />
</bean>
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