java.lang.NoClassDefFoundError: io/restassured/mapper/factory/GsonObjectMapperFactory答案

【问题标题】：java.lang.NoClassDefFoundError: io/restassured/mapper/factory/GsonObjectMapperFactoryjava.lang.NoClassDefFoundError: io/restassured/mapper/factory/GsonObjectMapperFactory
【发布时间】：2017-07-09 06:24:42
【问题描述】：

当我尝试使用放心框架执行脚本时出现错误。请指导我解决同样的问题。我用下面的罐子

Java version - 8
rest-assured-2.8.0
json-path-2.8.0
hamcrest-all-1.3
commons-lang3-3.0
json-schema-validator-2.2.0



>FAILED: foo
    java.lang.NoClassDefFoundError: io/restassured/mapper/factory/GsonObjectMapperFactory
        at io.restassured.config.RestAssuredConfig.<init>(RestAssuredConfig.java:41)
        at io.restassured.RestAssured.<clinit>(RestAssured.java:420)
        at practice.GetRequest.foo(GetRequest.java:12)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:108)
        at org.testng.internal.Invoker.invokeMethod(Invoker.java:661)
        at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:869)
        at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1193)
        at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:126)
        at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:109)
        at org.testng.TestRunner.privateRun(TestRunner.java:744)
        at org.testng.TestRunner.run(TestRunner.java:602)
        at org.testng.SuiteRunner.runTest(SuiteRunner.java:380)
        at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:375)
        at org.testng.SuiteRunner.privateRun(SuiteRunner.java:340)
        at org.testng.SuiteRunner.run(SuiteRunner.java:289)
        at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
        at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
        at org.testng.TestNG.runSuitesSequentially(TestNG.java:1301)
        at org.testng.TestNG.runSuitesLocally(TestNG.java:1226)
        at org.testng.TestNG.runSuites(TestNG.java:1144)
        at org.testng.TestNG.run(TestNG.java:1115)
        at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:132)
        at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:230)
        at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:76)
    Caused by: java.lang.ClassNotFoundException: io.restassured.mapper.factory.GsonObjectMapperFactory
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        ... 28 more


    ===============================================
        Default test
        Tests run: 1, Failures: 1, Skips: 0
    ===============================================


    ===============================================
    Default suite
    Total tests run: 1, Failures: 1, Skips: 0
    ===============================================

【问题讨论】：

标签： rest-assured

【解决方案1】：

根本原因是放心 *ObjectMapperFactory 包名称发生变化，例如在版本 3.x 和 4.x 之间发生变化。

对于在release of rest-assured 4.0.0 之后遇到此问题的任何人，此问题可能出现在 Spring Boot 项目中 - 由 rest-assured 及其对 json-path 和 xml-path 中的 spring-boot-dependencies bom 的传递依赖之间的版本不匹配引起。

如果你指定一个依赖io.rest-assured:rest-assured:4.0.0，你还需要显式包含io.rest-assured:json-path:4.0.0和io.rest-assured:xml-path:4.0.0，否则spring-boot-dependencies会使用旧的*ObjectMapperFactory包名引入版本3.1.1。

【讨论】：

这帮助了我！无需手动指定依赖项，您只需覆盖 BOM 属性 extra["rest-assured.version"] = "4.0.0" (Kotlin DSL)

【解决方案2】：

对于遇到此问题的任何人，我发现此 git 页面也很有帮助：https://github.com/rest-assured/rest-assured/issues/1168

我的 maven POM 最终工作的一个例子是这样的：

            <dependency>
                <groupId>io.rest-assured</groupId>
                <artifactId>rest-assured</artifactId>
                <version>${io-rest-assured.version}</version>
                <scope>test</scope>
            </dependency>
            <!--Added required depeendencies due to : https://github.com/rest-assured/rest-assured/issues/1168 -->
            <dependency>
                <groupId>io.rest-assured</groupId>
                <artifactId>rest-assured-common</artifactId>
                <version>${io-rest-assured.version}</version>
            </dependency>
            <dependency>
                <groupId>io.rest-assured</groupId>
                <artifactId>json-path</artifactId>
                <version>${io-rest-assured.version}</version>
            </dependency>
            <dependency>
                <groupId>io.rest-assured</groupId>
                <artifactId>xml-path</artifactId>
                <version>${io-rest-assured.version}</version>
            </dependency>

【讨论】：

这帮助我克服了 Gson 错误，然后遇到了 Groovy 类路径错误，并且还需要指定 org.codehaus.groovy:Groovy:3.0.2 因为 Spring Boot 测试依赖项引入了不兼容的版本2.5.这就是我使用放心的 4.3.0 所经历的。

【解决方案3】：

正如 Jim Riordan 所说，您必须明确包含 io.rest-assured:json-path:4.0.0 和 io.rest-assured:xml-path:4.0.0

我还需要在我的 maven 依赖项io.rest-assured:spring-mock-mvc 中添加一个排除项

<dependency>
    <groupId>io.rest-assured</groupId>
    <artifactId>spring-mock-mvc</artifactId>
    <version>4.0.0</version>
    <scope>test</scope>
    <exclusions>
        <exclusion>
            <artifactId>rest-assured</artifactId>
            <groupId>io.rest-assured</groupId>
        </exclusion>
    </exclusions>
</dependency>

【讨论】：

【解决方案4】：

另一个选项是定义对rest-assured-all的依赖

  <dependency>
        <groupId>io.rest-assured</groupId>
        <artifactId>rest-assured-all</artifactId>
        <version>4.3.1</version>
        <scope>test</scope>
    </dependency>

如果您使用的是 Spring Mock MVC，则排除 3.X 版本

<dependency>
    <groupId>io.rest-assured</groupId>
    <artifactId>spring-mock-mvc</artifactId>
    <version>3.3.0</version>
    <scope>test</scope>
    <exclusions>
        <exclusion>
            <artifactId>rest-assured</artifactId>
            <groupId>io.rest-assured</groupId>
        </exclusion>
    </exclusions>
</dependency>

【讨论】：

【解决方案5】：

在查看错误时，您需要将 GSON 显式放入您的类路径或 POM 依赖项部分，因为它是 Rest Assured 的可选依赖项。

<!-- https://mvnrepository.com/artifact/com.google.code.gson/gson -->
<dependency>
    <groupId>com.google.code.gson</groupId>
    <artifactId>gson</artifactId>
    <version>2.8.1</version>
</dependency>

【讨论】：

【解决方案6】：

对于 Maven 项目，以下代码适用于 Spring Boot 项目：

<properties>
       <groovy.version>3.0.7</groovy.version>
       <rest-assured.version>4.3.3</rest-assured.version>
   </properties>

   <dependencies>
       <dependency>
           <groupId>org.springframework.boot</groupId>
           <artifactId>spring-boot-starter</artifactId>
       </dependency>
       <dependency>
           <groupId>org.springframework.boot</groupId>
           <artifactId>spring-boot-starter-test</artifactId>
           <scope>test</scope>
       </dependency>
       <dependency>
           <groupId>io.rest-assured</groupId>
           <artifactId>spring-mock-mvc</artifactId>
           <scope>test</scope>
           <exclusions>
               <exclusion>
                   <artifactId>groovy</artifactId>
                   <groupId>org.codehaus.groovy</groupId>
               </exclusion>
           </exclusions>
       </dependency>
       <dependency>
           <groupId>org.codehaus.groovy</groupId>
           <artifactId>groovy</artifactId>
           <version>${groovy.version}</version>
       </dependency>
       <dependency>
           <groupId>org.codehaus.groovy</groupId>
           <artifactId>groovy-xml</artifactId>
           <version>${groovy.version}</version>
       </dependency>
       <dependency>
           <groupId>org.codehaus.groovy</groupId>
           <artifactId>groovy-json</artifactId>
           <version>${groovy.version}</version>
       </dependency>
       <dependency>
           <groupId>io.rest-assured</groupId>
           <artifactId>json-path</artifactId>
           <version>${rest-assured.version}</version>
           <scope>test</scope>
       </dependency>
       <dependency>
           <groupId>io.rest-assured</groupId>
           <artifactId>xml-path</artifactId>
           <version>${rest-assured.version}</version>
           <scope>test</scope>
       </dependency>
   </dependencies>

【讨论】：