Mule Anypoint Studio groovy.lang.MissingPropertyException：没有这样的属性：类的 StringEscapeUtils

Posted 2023-03-24

【中文标题】Mule Anypoint Studio groovy.lang.MissingPropertyException：没有这样的属性：类的 StringEscapeUtils

【英文标题】：Mule Anypoint Studio groovy.lang.MissingPropertyException: No such property: StringEscapeUtils for class

【发布时间】：2020-11-05 02:53:15

【问题描述】：

这适用于 Mule 4，在 4.3 EE 运行时

更新

POM 文件包含标准依赖项，感谢 Aled 的回答，也将其作为共享库包含在内：

<build>
    <plugins>
        <plugin>
            <groupId>org.mule.tools.maven</groupId>
            <artifactId>mule-maven-plugin</artifactId>
            <version>$mule.maven.plugin.version</version>
            <extensions>true</extensions>
            <configuration>
            <sharedLibraries>
                <sharedLibrary>
                        <groupId>org.apache.commons</groupId>
                        <artifactId>commons-lang3</artifactId>
                    </sharedLibrary>
                    <sharedLibrary>
                        <groupId>org.springframework</groupId>
                        <artifactId>spring-beans</artifactId>
                    </sharedLibrary>
                <sharedLibrary>
                        <groupId>org.springframework</groupId>
                        <artifactId>spring-context</artifactId>
                    </sharedLibrary>
                <sharedLibrary>
                        <groupId>org.springframework.security</groupId>
                        <artifactId>spring-security-core</artifactId>
                    </sharedLibrary>
                <sharedLibrary>
                        <groupId>org.springframework.security</groupId>
                        <artifactId>spring-security-config</artifactId>
                    </sharedLibrary>
                <sharedLibrary>
                        <groupId>org.springframework</groupId>
                        <artifactId>spring-core</artifactId>
                    </sharedLibrary>
                </sharedLibraries>
            </configuration>
        </plugin>
    </plugins>
</build>


<dependencies>
    <dependency>
        <groupId>org.mule.connectors</groupId>
        <artifactId>mule-http-connector</artifactId>
        <version>1.5.6</version>
        <classifier>mule-plugin</classifier>
    </dependency>
    <dependency>
        <groupId>org.mule.connectors</groupId>
        <artifactId>mule-sockets-connector</artifactId>
        <version>1.1.5</version>
        <classifier>mule-plugin</classifier>
    </dependency>
    <dependency>
        <groupId>com.mulesoft.modules</groupId>
        <artifactId>mule-secure-configuration-property-module</artifactId>
        <version>1.2.2</version>
        <classifier>mule-plugin</classifier>
    </dependency>
    <dependency>
        <groupId>com.mulesoft.connectors</groupId>
        <artifactId>mule-amazon-s3-connector</artifactId>
        <version>5.6.0</version>
        <classifier>mule-plugin</classifier>
    </dependency>
    <dependency>
        <groupId>com.mulesoft.connectors</groupId>
        <artifactId>mule-amazon-sns-connector</artifactId>
        <version>4.4.2</version>
        <classifier>mule-plugin</classifier>
    </dependency>
    <dependency>
        <groupId>org.mule.modules</groupId>
        <artifactId>mule-spring-module</artifactId>
        <version>1.3.3</version>
        <classifier>mule-plugin</classifier>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-beans</artifactId>
        <version>5.1.6.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>5.1.6.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-core</artifactId>
        <version>5.1.5.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-config</artifactId>
        <version>5.1.5.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>5.1.6.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.mule.modules</groupId>
        <artifactId>mule-scripting-module</artifactId>
        <version>1.1.6</version>
        <classifier>mule-plugin</classifier>
    </dependency>
    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-lang3</artifactId>
        <version>3.10</version>
    </dependency>
</dependencies>

<repositories>
      <repository>
        <id>anypoint-exchange</id>
        <name>Anypoint Exchange</name>
        <url>https://maven.anypoint.mulesoft.com/api/v1/maven</url>
        <layout>default</layout>
    </repository>
    <repository>
        <id>mulesoft-releases</id>
        <name>MuleSoft Releases Repository</name>
        <url>https://repository.mulesoft.org/releases/</url>
        <layout>default</layout>
    </repository>
</repositories>
<pluginRepositories>
    <pluginRepository>
        <id>mulesoft-releases</id>
        <name>mulesoft release repository</name>
        <layout>default</layout>
        <url>https://repository.mulesoft.org/releases/</url>
        <snapshots>
            <enabled>false</enabled>
        </snapshots>
    </pluginRepository>
</pluginRepositories>

所需方法的测试调用：

<scripting:execute doc:name="test StringEscapeUtil" doc:id="3f3fafea-e42c-48d2-820b-69f683307b69" engine="groovy">
    <scripting:code >import org.apache.commons.lang.*;

    String test = &quot;This is a test ,string \&quot; to escape&quot;;

    log.info(StringEscapeUtils.escapeCsv(test))
    </scripting:code>
</scripting:execute>

实际错误：

org.mule.runtime.core.internal.exception.OnErrorPropagateHandler: 
********************************************************************************
Message               : groovy.lang.MissingPropertyException: No such property: StringEscapeUtils for class: Script2
Element               : test/processors/2 @ test:test/testScript.xml:47 (test StringEscapeUtil)
Element DSL           : <scripting:execute doc:name="test StringEscapeUtil" doc:id="3f3fafea-e42c-48d2-820b-69f683307b69" engine="groovy">
<scripting:code>import org.apache.commons.lang.*;

String test ="This is a test ,string \"to escape";

log.info(StringEscapeUtils.escapeCsv(test))</scripting:code>
</scripting:execute>
Error type            : SCRIPTING:EXECUTION
********************************************************************************

原始问题

使用 Groovy 引擎运行的脚本模块。

我已将依赖项包含在 mule maven pom 文件中：

<dependency>
    <groupId>org.apache.commons</groupId>
    <artifactId>commons-lang3</artifactId>
    <version>3.10</version>
</dependency>

groovy 脚本组件确实调用了 apache commons lang3：

import org.apache.commons.lang3.*;

而调用本身就彻底失败了：

StringEscapeUtils.escapeCsv(csvText);

实际错误：

Message               : groovy.lang.MissingPropertyException: No such property: StringEscapeUtils for class: Script2

【问题讨论】：

经过所有类型的测试后，我将 lang3 更改为 lang，这导致了次要问题。 Aled 的解决方案是正确的，并将其标记为正确。

【参考方案1】：

由于Mule 4 classloading isolation需要在pom中将Apache Commons Lang3库标记为shared，这样脚本模块才能看到：

        <plugin>
            <groupId>org.mule.tools.maven</groupId>
            <artifactId>mule-maven-plugin</artifactId>
            <version>$mule.maven.plugin.version</version>
            <extensions>true</extensions>
            <configuration>
                <sharedLibraries>
                    <sharedLibrary> <!-- make commons-lang3 shared -->
                        <groupId>org.apache.commons</groupId>
                        <artifactId>commons-lang3</artifactId>
                    </sharedLibrary>
                  </sharedLibraries>
            </configuration>
        </plugin>

【讨论】：

感谢您的洞察力。我应该补充一点，这也需要作为标准依赖项添加，否则它将无法编译并且令人沮丧地没有给出真正的解释。

话虽如此，问题依然存在。我会更新原来的问题。

正确的解决方案 - 我错误地将导入实现为 lang 而不是 lang3。当您测试某些东西并忘记将其恢复为原始值时，就会发生这种情况。