本文介绍了“无法找到Spring NamespaceHandler”错误的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧! 问题描述 29岁程序员,3月因学历无情被辞! 我正在使用Spring创建一个独立的Sava应用程序来处理JDBC访问。该应用程序在每次测试中都能正常工作,我决定需要一个jar来部署我们的客户。I'm creating a stand-alone Sava application with Spring, to handle the JDBC access. The application works fine on every test and I decided that I need a jar to be deployed our clients.他们的类路径中可能没有弹簧,所以我使用了maven- assembly-plugin用于处理带有依赖项的jar创建。They might not have spring in their classpath, so I used maven-assembly-plugin to handle the jar creation with dependencies.但是当我尝试运行应用程序时:However when I try to run the application:java -jar target/myproject-0.0.1-SNAPSHOT-jar-with-dependencies.jar会抛出以下错误:Exception in thread "main" org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Unable to locate Spring NamespaceHandler for XML schema namespace [http://www.springframework.org/schema/p]Offending resource: class path resource [applicationContext.xml]at org.springframework.beans.factory.parsing.FailFastProblemReporter.error(FailFastProblemReporter.java:68)at org.springframework.beans.factory.parsing.ReaderContext.error(ReaderContext.java:85)at org.springframework.beans.factory.parsing.ReaderContext.error(ReaderContext.java:80)...and so on to the database access class of this project. applicationContext.xml文件位于projectbase / src / main / resources中。并将其置于目标/包名称基础。The applicationContext.xml file is in projectbase/src/main/resources. And its placed at target/packagename base. applicationContext.xmlThe applicationContext.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:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd"> <bean id="dataSourceDesenv" class="org.apache.commons.dbcp.BasicDataSource"... /> <bean id="simpleJdbcDaoSupport" class="org.springframework.jdbc.core.simple.SimpleJdbcDaoSupport" p:dataSource-ref="dataSourceDesenv" /> <bean id="simpleJdbcTemplate" class="org.springframework.jdbc.core.simple.SimpleJdbcTemplate"> <constructor-arg ref="dataSourceDesenv" /> </bean></beans>推荐答案我发现错误,错误在于 maven-assembly插件中未修复的错误。 我使用了以下解决方法:I found the error, the bug lies in an unfixed bug in the maven-assembly plugin.I used the following workaround:首先在我的pom中注释掉了maven-assembly代码。然后我使用maben-dependency-plugin将依赖项复制到目标的lib文件夹中:First commented out the maven-assembly code in my pom. Then I copied the dependencies to a lib folder at the target using the maben-dependency-plugin:<plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-dependency-plugin</artifactId> <executions> <execution> <id>copy-dependencies</id> <phase>package</phase> <goals> <goal>copy-dependencies</goal> </goals> <configuration> <outputDirectory>${project.build.directory}/lib</outputDirectory> </configuration> </execution> </executions></plugin>然后我使用maven-jar-plugin来设置我的可执行jar:Then I used the maven-jar-plugin to setup my executable jar: <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-jar-plugin</artifactId> <version>2.3.1</version> <configuration> <archive> <index>true</index> <manifest> <addClasspath>true</addClasspath> <mainClass>org.foo.myproject.App</mainClass> </manifest> <manifestEntries> <mode>development</mode> <url>${pom.url}</url> <key>value</key> </manifestEntries> </archive> </configuration> </plugin>最后,我创建了一个bash脚本,该脚本与运行我的app及其libs的应用程序一起部署提供参数:Finally I created a bash script that is deployed with the application that runs my app with its libs and any provided arguments:java -cp lib/*:myproject-0.0.1-SNAPSHOT.jar org.foo.myproject.App $@我应该在python中构建应用程序= /I should have built the app in python =/ 这篇关于“无法找到Spring NamespaceHandler”错误的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持! 上岸,阿里云!