Xuân hello world dụ lỗi

Question

Tôi có lỗi này:

INFO: Loading XML bean definitions from class path resource [Beans.xml] 
Exception in thread "main" org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: Line 2 in XML document from class path resource [Beans.xml] is invalid; nested exception is org.xml.sax.SAXParseException; lineNumber: 2; columnNumber: 6; The processing instruction target matching "[xX][mM][lL]" is not allowed. 
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:398) 
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:335) 
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:303) 
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:180) 
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:216) 
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:187) 
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:251) 
    at org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions(AbstractXmlApplicationContext.java:127) 
    at org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions(AbstractXmlApplicationContext.java:93) 
    at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:130) 
    at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:551) 
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:465) 
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139) 
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83) 
    at com.tutorialspoint.MainApp.main(MainApp.java:10) 

Caused by: org.xml.sax.SAXParseException; lineNumber: 2; columnNumber: 6; The processing instruction target matching "[xX][mM][lL]" is not allowed. 
    at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source) 
    at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(Unknown Source) 
    at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown Source) 
    at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown Source) 
    at com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(Unknown Source) 
    at com.sun.org.apache.xerces.internal.impl.XMLScanner.scanPIData(Unknown Source) 
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanPIData(Unknown Source) 
    at com.sun.org.apache.xerces.internal.impl.XMLScanner.scanPI(Unknown Source) 
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(Unknown Source) 
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source) 
    at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(Unknown Source) 
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source) 
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) 
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) 
    at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source) 
    at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(Unknown Source) 
    at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(Unknown Source) 
    at org.springframework.beans.factory.xml.DefaultDocumentLoader.loadDocument(DefaultDocumentLoader.java:76) 
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:389) 

tôi có thêm các thư viện:

• commons-logging-1.1.3
• mùa xuân-AOP-4.0.0. M1
• spring-aspect-4.0.0.M1
• spring-beans-4.0.0.M1
• spring-conte xt-4.0.0.M1
• mùa xuân-context-hỗ trợ-4.0.0.M1
• mùa xuân-core-4.0.0.M1
• ANTLR-runtime-3.0.1

My mã:

package com.tutorialspoint; 

public class HelloWorld { 
    private String message; 

    public void setMessage(String message){ 
     this.message = message; 
    } 

    public void getMessage(){ 
     System.out.println("Your Message : " + message); 
    } 
} 


package com.tutorialspoint; 

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

public class MainApp { 
    @SuppressWarnings("resource") 
    public static void main(String[] args) { 
     ApplicationContext context = new ClassPathXmlApplicationContext("Beans.xml"); 

     HelloWorld obj = (HelloWorld) context.getBean("helloWorld"); 

     obj.getMessage(); 
    } 
} 

Cấu hình

<?xml version="1.0" encoding="UTF-8"?> 
<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="helloWorld" class="com.tutorialspoint.HelloWorld"> 
     <property name="message" value="Hello World!" /> 
    </bean> 
</beans> 

Answer 1

Cố gắng không để tách những xml thành nhiều dòng:

xsi:schemaLocation="http://www.springframework.org/schema/beans 
http://www.springframework.org/schema/beans/spring-beans- 
3.0.xsd" 

Thường các dòng mới và khoảng trống bên trong giá trị thuộc tính XML được coi là chữ. Sử dụng điều này thay vì:

xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd" 

Answer 2

Chỉ cần thêm spring-expression-3.x.x.RELEASE jar qua java xây dựng con đường

Answer 3

Tôi đã cùng một lỗi, khắc phục rằng dòng đầu tiên nên Beans.xml nên bắt đầu với (không dòng trống trong dòng đầu tiên)

Answer 4

tôi có cùng sự cố. không nên có bất kỳ không gian vào lúc bắt đầu của dòng 1 tức đây là dòng

no space<?xml version="1.0" encoding="UTF-8"?>