我在 Eclipse 中有一个项目，它是一个 WebService 项目 REST API，我还在 Configure Build path -> Add Project 中添加了另一个项目，我还添加了另一个项目在我的 API 方法中，我正在调用 TestNGCreator 类，如下所示。

基本上这个项目使用 java 中的 jersey 框架来创建 REST API，当我调用任何特定方法时，即执行它将调用另一个驻留在另一个项目中的类，我在这个项目的构建路径中添加了项目，我的其他方法工作正常但是当我从不同的项目调用方法时出现此错误。

我是否需要在 POM.xml 或其他地方声明一些我正在使用此类和此方法的地方

我需要通过调用此 TestNGCreator.main(null); 来运行自动化 我的另一个项目是 java 中的自动化项目 TestNGCreator 类驻留在自动化项目中。通过调用此方法，我需要调用上面的类，当我这样做时出现错误。

错误:

    May 17, 2019 4:20:51 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [Jersey Web Application] in context with path [/webservices] threw exception [org.glassfish.jersey.server.ContainerException: java.lang.NoClassDefFoundError: org/testng/TestNG] with root cause
java.lang.ClassNotFoundException: org.testng.TestNG
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1955)
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1798)
    at testDrivers.TestNGCreator.runTestNGTest(TestNGCreator.java:44)
    at testDrivers.TestNGCreator.main(TestNGCreator.java:165)
    at com.xyz.webservices.Resource.executeScript(Resource.java:179)
    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.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81)
    at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:143)
    at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:160)
    at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$ResponseOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:158)
    at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:97)
    at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:389)
    at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:347)
    at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:102)
    at org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:303)
    at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271)
    at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:267)
    at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317)
    at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:286)
    at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1072)
    at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:399)
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:381)
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:344)
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:221)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:494)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:1025)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:445)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1137)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:317)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Unknown Source)

文件:Resource.java

      @POST
      @Path("/execute")
      @Consumes(MediaType.APPLICATION_JSON)
      @Produces(MediaType.APPLICATION_JSON)
      public Response executeScript(String data) throws JSONException
        {   
            ArrayList<Object> testCases = new ArrayList<Object>();
            JSONArray jsonArray = new JSONArray();
            JSONObject json = new JSONObject(data);
            String configFile = (String) json.get("ConfigFiles");
            String sheetName = (String) json.get("Sheetname");
            jsonArray = (JSONArray) json.get("testCases");

            for (int i = 0 ; i < jsonArray.length() ; i++)
            {
                testCases.add(jsonArray.get(i));
            }

            try {
                TestNGCreator.main(null); //here  i am calling that class main method
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

            Response response = null;
            System.out.println(jsonArray);
            System.out.println(testCases);
            return response;
        }

文件:TestNGCreator.java

package testDrivers;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.testng.TestNG;
import org.testng.xml.XmlClass;
import org.testng.xml.XmlSuite;
import org.testng.xml.XmlTest;

import projlib.Globals;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.util.Iterator;

import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;

import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellType;

import org.apache.poi.xssf.usermodel.XSSFWorkbook;




public class TestNGCreator 
{

    public void runTestNGTest() throws IOException 
    {

            System.out.println("Print this line in console");
            //Create an instance on TestNG
            TestNG myTestNG = new TestNG();

            //Create an instance of XML Suite and assign a name for it.
            XmlSuite mySuite = new XmlSuite();
            mySuite.setName(Globals.SUITE_NAME);

            //Create a list of XmlTests and add the Xmltest you created earlier to it.
            List<XmlTest> myTests = new ArrayList<XmlTest>();

            XSSFSheet excelWSheet = null;
            XSSFWorkbook excelWBook = null;
            XSSFCell cell = null;
            XSSFRow row = null;

            Double dblCellVal;
            String strCellVal = null;
            Boolean blnCellVal;

            FileInputStream excelFile = new FileInputStream(Globals.CONFIG_FILE_DIR+"/CropRecordConfig.xlsx");
            excelWBook = new XSSFWorkbook(excelFile);
            excelWSheet = excelWBook.getSheet("CropAdd");


            Iterator <Row> rowIterator = excelWSheet.iterator(); 
            //Iterator <Cell> cellIterator = row.cellIterator();
            String testName = null;
            int colCount;

            if (rowIterator.hasNext())
            {
                row = (XSSFRow) rowIterator.next();
                colCount = row.getPhysicalNumberOfCells();
            }
            while (rowIterator.hasNext())
            {
                row = (XSSFRow) rowIterator.next();
                Iterator <Cell> cellIterator = row.cellIterator();
                int curCell = 0;
                while (cellIterator.hasNext())
                {
                    cell = (XSSFCell) cellIterator.next();
                    curCell++;
                    switch (cell.getCellType())
                    {
                    case Cell.CELL_TYPE_NUMERIC:
                        dblCellVal = cell.getNumericCellValue();
                        strCellVal = dblCellVal.toString();
                        break;
                    case Cell.CELL_TYPE_STRING:
                        strCellVal = cell.getStringCellValue();
                        break;
                    case Cell.CELL_TYPE_BOOLEAN:
                        blnCellVal = cell.getBooleanCellValue();
                        strCellVal = blnCellVal.toString();
                        break;
                    }

                    //If it is first cell then store the Test Name
                    if (cell.getColumnIndex()== 0)
                    {
                        testName = strCellVal;
                    }

                    if (curCell == 5) {
                        if (strCellVal.equals("1.0")) {
                            //Adding to suite
                            //Create an instance of XmlTest and assign a name for it.
                            XmlTest myTest = new XmlTest(mySuite);
                            myTest.setName(testName);

                            //Add any parameters that you want to set to the Test.
                            Map<String, String> testngParams = new HashMap<String,String> ();
                            testngParams.put("testId", testName);
                            myTest.setParameters(testngParams);

                            //Create a list which can contain the classes that you want to run.
                            List<XmlClass> myClasses = new ArrayList<XmlClass> ();
                            myClasses.add(new XmlClass("TestDriver"));

                            //Assign that to the XmlTest Object created earlier.
                            myTest.setXmlClasses(myClasses);

                            //Adding the test to test list created earlier
                            myTests.add(myTest);
                            break;

                        }
                    }
                }

            }

            excelWBook.close();

            //add the list of tests to your Suite.
            mySuite.setTests(myTests);

            //Add the suite to the list of suites.
            List<XmlSuite> mySuites = new ArrayList<XmlSuite>();
            mySuites.add(mySuite);

            //Set the list of Suites to the testNG object you created earlier.
            myTestNG.setXmlSuites(mySuites);

            File file = new File(Globals.TESTNG_FILE_NAME);
            System.out.println("File is: " + file);

            FileWriter writer = new FileWriter(file);
            writer.write(mySuite.toXml());
            writer.close();

            //invoke run() - this will run your class.
            //myTestNG.run();




    }
    public static void main(String args[]) throws IOException
    {
        TestNGCreator testDriver = new TestNGCreator();
        testDriver.runTestNGTest();
    }
}

文件: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/maven-v4_0_0.xsd">

    <modelVersion>4.0.0</modelVersion>

    <groupId>com.xyz</groupId>
    <artifactId>webservices</artifactId>
    <packaging>war</packaging>
    <version>0.0.1-SNAPSHOT</version>
    <name>webservices</name>

    <build>
        <finalName>webservices</finalName>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>2.5.1</version>
                <inherited>true</inherited>
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                </configuration>
            </plugin>
        </plugins>
    </build>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.glassfish.jersey</groupId>
                <artifactId>jersey-bom</artifactId>
                <version>${jersey.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <dependencies>
        <dependency>
            <groupId>org.glassfish.jersey.containers</groupId>
            <artifactId>jersey-container-servlet</artifactId>
            <!-- use the following artifactId if you don't need servlet 2.x compatibility -->
            <!-- artifactId>jersey-container-servlet</artifactId -->
        </dependency>
        <dependency>
            <groupId>org.glassfish.jersey.core</groupId>
            <artifactId>jersey-client</artifactId>
        </dependency>
        <!-- uncomment this to get JSON support-->
        <dependency>
            <groupId>org.glassfish.jersey.media</groupId>
            <artifactId>jersey-media-moxy</artifactId>
        </dependency>
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.2.2</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.json</groupId>
            <artifactId>json</artifactId>
             <version>20080701</version>
       </dependency>
         <dependency>
        <groupId>org.apache.poi</groupId>
        <artifactId>poi</artifactId>
        <version>3.15</version>
    </dependency>

    <dependency>
        <groupId>org.apache.poi</groupId>
        <artifactId>poi-ooxml</artifactId>
        <version>3.15</version>
    </dependency>
    </dependencies>

    <properties>
        <jersey.version>2.16</jersey.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>
</project>

如有任何建议，我们将不胜感激^.^

最佳答案

我在你的 pom 文件中没有看到 test-ng 依赖项。 请添加以下内容并尝试。

<dependency>
    <groupId>org.testng</groupId>
    <artifactId>testng</artifactId>
    <version>6.10</version>
    <scope>test</scope>
</dependency>

关于java - org.glassfish.jersey.server.ContainerException : java. lang.NoClassDefFoundError : org. testng.TestNG？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/56148031/