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無法找到XML模式名稱空間Application-Context的Spring NamespaceHandler

[英]Unable to locate Spring NamespaceHandler for XML schema namespace Application-Context

 原文  2015-01-04 02:20:42  1   1    xml/ spring/ maven/ gwt/ xsd

問題描述

我正在使用一些Spring庫開發一個GWT Web應用程序。 我使用Maven來包含我的依賴項。

這是我的pom.xml： 

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchemainstance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">

    <modelVersion>4.0.0</modelVersion>
    <groupId>be.jon</groupId>
    <artifactId>bibliosgwt</artifactId>
    <packaging>war</packaging>
    <version>0.0.1-SNAPSHOT</version>
    <name>GWT Maven Archetype</name>

    <properties>
        <!-- Convenience property to set the GWT version -->
        <gwtVersion>2.7.0</gwtVersion>

        <!-- GWT needs at least java 1.6 -->
        <maven.compiler.source>1.7</maven.compiler.source>
        <maven.compiler.target>1.7</maven.compiler.target>

        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>com.google.gwt</groupId>
                <artifactId>gwt</artifactId>
                <version>${gwtVersion}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <dependencies>
        <dependency>
            <groupId>com.google.gwt</groupId>
            <artifactId>gwt-servlet</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>com.google.gwt</groupId>
            <artifactId>gwt-user</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>com.google.gwt</groupId>
            <artifactId>gwt-dev</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.11</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
            <version>4.1.4.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>com.jolbox</groupId>
            <artifactId>bonecp-spring</artifactId>
            <version>0.8.0.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-jpa</artifactId>
            <version>1.7.1.RELEASE</version>
        </dependency>

        // DEPENDENCY PROBLEM
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>4.1.3.RELEASE</version>
        </dependency>
        //
    </dependencies>

    <build>
        <!-- Output classes directly into the webapp, so that IDEs and "mvn process-classes" 
            update them in DevMode -->
        <outputDirectory>${project.build.directory}/${project.build.finalName}/WEBINF/classes</outputDirectory>

        <plugins>

            <!-- GWT Maven Plugin -->
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>gwt-maven-plugin</artifactId>
                <version>2.7.0</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>compile</goal>
                            <goal>test</goal>
                            <!-- <goal>generateAsync</goal> -->
                        </goals>
                    </execution>
                </executions>
                <!-- Plugin configuration. There are many available options, see gwt-maven-plugin 
                    documentation at codehaus.org -->
                <configuration>
                    <runTarget>bibliosgwt.html</runTarget>
                    <modules>
                        <module>be.jon.bibliosgwt.bibliosgwt</module>
                    </modules>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>

這是我的application-context.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:jpa="http://www.springframework.org/schema/data/jpa"
xsi:schemaLocation="http://www.springframework.org/schema/data/jpa            http://www.springframework.org/schema/data/jpa/spring-jpa-1.0.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-    beans.xsd">

<!-- Hibernate SessionFactory -->
<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
    <!-- Tell hibernate to use our given datasource -->
    <property name="dataSource" ref="dataSource" />
    <property name="hibernateProperties">
        <props>
            <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
            <prop key="hibernate.hbm2ddl.auto">create</prop>
            <prop key="hibernate.show_sql">true</prop>
        </props>
    </property>
    <property name="packagesToScan">
        <value>be.jon.bibliosgwt.shared.Entities</value>
    </property>
</bean>

<jpa:repositories base-package="be.jon.biliosgwt.server.repositories"/>

<!-- Spring bean configuration. Tell Spring to bounce off BoneCP -->
<bean id="dataSource" class="org.springframework.jdbc.datasource.LazyConnectionDataSourceProxy">
    <property name="targetDataSource" ref="mainDataSource"/>
</bean>

<!-- BoneCP configuration -->
<bean id="mainDataSource" class="com.jolbox.bonecp.BoneCPDataSource" destroy-method="close">
    <property name="driverClass" value="com.mysql.jdbc.Driver" />
    <property name="jdbcUrl" value="jdbc:mysql:/localhost:3306/bibliosgwt" />
    <property name="username" value="root" />
    <property name="password" value="" />
    <property name="idleConnectionTestPeriod" value="60" />
    <property name="idleMaxAge" value="240" />
    <property name="maxConnectionsPerPartition" value="60" />
    <property name="minConnectionsPerPartition" value="20" />
    <property name="partitionCount" value="3" />
    <property name="acquireIncrement" value="10" />
    <property name="statementsCacheSize" value="50" />
    <property name="releaseHelperThreads" value="3" />
</bean>

<bean id="greetService" class="be.jon.bibliosgwt.server.GreetingServiceImpl"></bean>

一切都很好，但是當我包括Spring-Web依賴項時。 我在啟動項目時遇到問題。 發生以下異常： 

  [WARN] Failed startup of context cggdsjWebAppContextWithReload{/,file:/D:/Users/Yeap/workspace-sts

3.6.2.RELEASE / testproject / target / testproject-0.0.1-SNAPSHOT /}，D：\\ Users \\ Yeap \\ workspace-sts 3.6.2.RELEASE \\ testproject \\ target \\ testproject-0.0.1-SNAPSHOT org.springframework .beans.factory.parsing.BeanDefinitionParsingException：配置問題：無法找到XML模式命名空間的Spring NamespaceHandler [ http://www.springframework.org/schema/data/jpa]令人反感的資源：ServletContext資源[/ WEB-INF / application -context.xml]

我不明白問題出在哪里...我想到了SchemaLocation命名空間問題，但是我嘗試了所有版本，但沒有一個是好的。

1 個解決方案

解決方案1
 0  2015-01-04 08:23:36

我可以看到幾件事互相影響

  1. 混合彈簧版本4.1.4和4.1.3
  2. Spring Data JPA取決於spring的4.0.7版本
  3. 您的bean名稱空間包含空格/制表符嗎？
  4. 使用版本少的架構聲明。

為了管理您的依賴關系並防止混合版本，建議使用Spring Framework BOM，就像使用GWT中的BOM一樣。 這將使您免於頭痛。 

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>com.google.gwt</groupId>
            <artifactId>gwt</artifactId>
            <version>${gwtVersion}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-framework-bom</artifactId>
            <version>4.1.4.RELEASE</version>            
            <type>pom</type>
            <scope>import</scope>
        </dependency>            
    </dependencies>
</dependencyManagement>

<dependencies>       
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-orm</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-jpa</artifactId>
        <version>1.7.1.RELEASE</version>
    </dependency>
    // Other dependencies
</dependencies>

接下來，您的名稱空間聲明有些錯誤，建議使用版本少的XSD。 

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

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