Question

我正在从头开始创建一个HelloWorld web / spring应用程序。我已经关注this tutorial以了解如何使用mvc模式。因此，在完成所有步骤并开始运行应用程序后，我在控制台中收到此错误：

Grave：上下文初始化失败 org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException：来自ServletContext资源的XML文档中的第11行 [/WEB-INF/dispatcher-servlet.xml]无效;嵌套异常是 org.xml.sax.SAXParseException; lineNumber：11; columnNumber：100; CVC-复type.2.4.c

搜索SO问题我发现了一些像下面这样的威胁，但还没有解决我的错误。

因此，我推断可能是WEB-INF文件夹中的dispatcher-servlet.xml。这个xml看起来像：

<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/mvc"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:beans="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
       http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd">


    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix">
            <value>/WEB-INF/jsp/</value>
        </property>

        <property name="suffix">
            <value>.jsp</value>
        </property>
    </bean>

    <bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
        <property name="interceptors">
            <list>
                <ref local="localeChangeInterceptor" />
            </list>
        </property>

        <property name="urlMap">
            <map>
                <entry key="/hello.html">
                    <ref bean="helloController" />
                </entry>
            </map>
        </property>

    </bean>

    <bean id="helloController" class="controllers.HelloController">
    </bean>

    <bean id="localeChangeInterceptor"
        class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor">

        <property name="paramName" value="hl" />

    </bean>

    <bean id="localeResolver" class="org.springframework.web.servlet.i18n.SessionLocaleResolver">
    </bean>

</beans>

最后这些是我加入的罐子：

commons-logging-1.1.1.jar

org.springframework.aop-3.1.2.RELEASE.jar
org.springframework.asm-3.1.2.RELEASE.jar
org.springframework.aspects-3.1.2.RELEASE.jar
org.springframework.beans-3.1.2.RELEASE.jar
org.springframework.context-3.1.2.RELEASE.jar
org.springframework.context.support-3.1.2.RELEASE.jar
org.springframework.core-3.1.2.RELEASE.jar
org.springframework.expression-3.1.2.RELEASE.jar
org.springframework.instrument-3.1.2.RELEASE.jar
org.springframework.instrument.tomcat-3.1.2.RELEASE.jar
org.springframework.jdbc-3.1.2.RELEASE.jar
org.springframework.jms-3.1.2.RELEASE.jar
org.springframework.orm-3.1.2.RELEASE.jar
org.springframework.oxm-3.1.2.RELEASE.jar
org.springframework.spring-library-3.1.2.RELEASE.libd
org.springframework.test-3.1.2.RELEASE.jar
org.springframework.transaction-3.1.2.RELEASE.jar
org.springframework.web-3.1.2.RELEASE.jar
org.springframework.web.portlet-3.1.2.RELEASE.jar
org.springframework.web.servlet-3.1.2.RELEASE.jar
org.springframework.web.struts-3.1.2.RELEASE.jar

spring-webmvc-3.0.5.RELEASE.jar

提前致谢

编辑1：

在对@Biju Kunjummen进行更改后，看起来现在的问题是bean声明中存在一个comflic：

Grave: Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'urlMapping' defined in ServletContext resource [/WEB-INF/dispatcher-servlet.xml]: Cannot resolve reference to bean 'helloController' while setting bean property 'urlMap' with key [TypedStringValue: value [/hello.html], target type [null]]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'helloController' defined in ServletContext resource [/WEB-INF/dispatcher-servlet.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [controllers.HelloController]: Constructor threw exception; nested exception is java.lang.Error: Unresolved compilation problems: 
    The type java.lang.Object cannot be resolved. It is indirectly referenced from required .class files
    Implicit super constructor Object() is undefined for default constructor. Must define an explicit constructor
    String cannot be resolved to a type

我已经检查了控制器并且看起来很好src/controllers dir：

package controllers;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;

public class HelloController implements Controller {

    public ModelAndView handleRequest(HttpServletRequest request,
              HttpServletResponse response) throws ServletException, IOException {

              String Mess = "Hello World!";

              ModelAndView modelAndView = new ModelAndView("hello");
              modelAndView.addObject("message", Mess);

              return modelAndView;
              }

}

Answer 1

您有http://www.springframework.org/schema/mvc作为默认值，但您的bean定义属于http://www.springframework.org/schema/beans命名空间，应该是问题。

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


<beans:bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <beans:property name="prefix">
        <beans:value>/WEB-INF/jsp/</beans:value>
    </beans:property>

.....

或者以这种方式使bean命名空间成为默认名称：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
       http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd">


    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix">
            <value>/WEB-INF/jsp/</value>
        </property>

        <property name="suffix">
            <value>.jsp</value>
        </property>
    </bean>

严重：上下文初始化失败

1 个答案: