嘗試在spring中使用p名稱空間重寫beans.xml時出錯

Question

MainApp48.java package com.tpoint;

import org.springframework.context.ApplicationContext; 
import org.springframework.context.support.ClassPathXmlApplicationContext; 

public class MainApp48 { 

public static void main(String[] args) { 
    ApplicationContext context = new ClassPathXmlApplicationContext(
      "Beans48.xml"); 

    Jhon obja = (Jhon) context.getBean("jhon"); 
    System.out.println(obja); 
    System.out.println(obja.getName()); 
    System.out.println(obja.getJane().getName()); 

} 
} 

Jhon.java

package com.tpoint; 

public class Jhon { 

private String name; 
private Jane jane; 

public void setName(String name) 
{ 
    this.name = name; 
} 

public void setJane(Jane jane) 
{ 
    this.jane = jane; 
} 

public String getName() 
{ 
    return this.name; 
} 

public Jane getJane() 
{ 
    return this.jane; 
} 
} 

最後Beans48.xml

<?xml version="1.0" encoding="UTF-8"?> 
<beans xmlns="http://www.springframework.org/schema/beans" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xmlns:util="http://www.springframework.org/schema/util" 
    xsi:schemaLocation=" 
    http://www.springframework.org/schema/beans http://www.springframework.org/schema /beans/spring-beans-3.0.xsd 
    http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd"> 

<bean id ="jhon" class="com.tpoint.Jhon" 
p:name = "test name" 
p:jane-ref="jane" /> 

<bean id ="jane" class="com.tpoint.Jane" p:name="test jane name" /> 

</beans> 

此代碼工作正常，在豆類xml文件的常規屬性標記。但我嘗試使用p-namespace重寫bean xml配置我得到這個錯誤。我無法弄清楚什麼是錯

Exception in thread "main"  org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: Line 13 in XML document from class path resource [Beans48.xml] is invalid; nested exception is org.xml.sax.SAXParseException; lineNumber: 13; columnNumber: 21; The prefix "p" for attribute "p:name" associated with an element type "bean" is not bound. 
at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:396) 

Answer 1

「此代碼工作正常，在豆類xml文件的常規屬性標記，但我嘗試使用p名稱空間我得到這個錯誤改寫bean的xml配置。我無法弄清楚什麼是錯」

看起來你還沒有加入p命名空間到你的XML

xmlns:p="http://www.springframework.org/schema/p"