Question

任何人都可以识别下面的命名空间声明有什么问题吗？我已经提到了所有命名空间，并提供了对模式文件的引用。不确定还缺少什么。

<?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:aop="http://www.springframework.org/schema/aop"
    xmlns:tx="http://www.springframework.org/schema/tx" 
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="    
          http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd    
          http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd    
          http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd    
          http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

    <context:component-scan base-package="com.mypackage" />
    <context:annotation-config />
    <tx:annotation-driven />

</beans>

错误讯息：

此行找到多个注释： - cvc-complex-type.2.4.c：匹配的通配符是严格的，但是没有找到元素＆t; tx：annotation-driven＆＃39;的声明。 - schema_reference.4：无法读取架构文档＆＃39; http://www.springframework.org/schema/tx/spring-tx.xsd＆＃39;，因为1）找不到文件; 2）文件无法阅读; 3）文档的根元素不是<xsd:schema>。

Answer 1

我更喜欢STS而不是Eclipse，这就是人们如何重现这个问题......

我有一个带有Spring上下文依赖的Maven项目：

<强>的pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>betlista</groupId>
    <artifactId>tests.so.q34779551</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>SO-q34779551</name>

    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>4.2.4.RELEASE</version>
        </dependency>
    </dependencies>

</project>

当我现在在spring.xml创建src/main/resources时，我遇到同样的问题：

schema_reference.4: Failed to read schema document 'http://www.springframework.org/schema/beans/spring-beans.xsd', because 1) could not find the document; 2) the document could not be read; 3) the root element of the document is not <xsd:schema>.
schema_reference.4: Failed to read schema document 'http://www.springframework.org/schema/context/spring-context.xsd', because 1) could not find the document; 2) the document could not be read; 3) the root element of the document is not <xsd:schema>.
schema_reference.4: Failed to read schema document 'http://www.springframework.org/schema/context/spring-context.xsd', because 1) could not find the document; 2) the document could not be read; 3) the root element of the document is not <xsd:schema>.
schema_reference.4: Failed to read schema document 'http://www.springframework.org/schema/tx/spring-tx.xsd', because 1) could not find the document; 2) the document could not be read; 3) the root element of the document is not <xsd:schema>.

问题是，spring-tx和spring-context不在依赖关系中 - 添加时，错误是固定的。

this answer中的更多详情。

匹配的通配符是严格的，但是没有找到元素＆t; tx：annotation-driven＆＃39; ＆＃39;上下文：组分扫描＆＃39;

1 个答案: