unable to find resource 'xxx\xx\overview.vm' in any resource loader.

ResourceManager : unable to find resource 'C:\Test\TestConfig\overview.vm' in any resource loader.
org.apache.velocity.exception.ResourceNotFoundException: Unable to find resource 'C:\Test\TestConfig\overview.vm'
at org.apache.velocity.runtime.resource.ResourceManagerImpl.loadResource(ResourceManagerImpl.java:474)
at org.apache.velocity.runtime.resource.ResourceManagerImpl.getResource(ResourceManagerImpl.java:352)
at org.apache.velocity.runtime.RuntimeInstance.getTemplate(RuntimeInstance.java:1533)
at org.apache.velocity.runtime.RuntimeInstance.getTemplate(RuntimeInstance.java:1514)
at org.apache.velocity.app.VelocityEngine.getTemplate(VelocityEngine.java:373)
at baseReport.GenerateReporter.generateReport(GenerateReporter.java:28)
at org.testng.TestNG.generateReports(TestNG.java:1076)
at org.testng.TestNG.run(TestNG.java:1001)
at org.testng.IDEARemoteTestNG.run(IDEARemoteTestNG.java:72)
at org.testng.RemoteTestNGStarter.main(RemoteTestNGStarter.java:123)

导致的原因是overview.vm路径不正确

换了一种写法，注释掉的是之前的，对比下

package baseReport;

import org.apache.velocity.Template;
import org.apache.velocity.VelocityContext;
import org.apache.velocity.app.VelocityEngine;
import org.testng.*;
import org.testng.xml.XmlSuite;

import java.io.*;
import java.util.List;
import java.util.Map;
import java.util.Properties;

public class GenerateReporter implements IReporter {

    @Override
    public void generateReport(List<XmlSuite> xmlSuites, List<ISuite> suites,
                               String outputDirectory) {
        // TODO Auto-generated method stub
        try {
            // 初始化并取得Velocity引擎
            VelocityEngine ve = new VelocityEngine();
            Properties p = new Properties();
            String fileDir=".//TestConfig/";
            //p.setProperty("resource.loader", "class");
            //p.setProperty("class.resource.loader.class", "org.apache.velocity.runtime.resource.loader.ClasspathResourceLoader");
            //ve.init(p);
            //Template t = ve.getTemplate("main/java/baseReport/overview.vm");
            p.setProperty(ve.FILE_RESOURCE_LOADER_PATH, fileDir); //此处的fileDir可以直接用绝对路径来
            ve.init(p);   //初始化
            Template t = ve.getTemplate("overview.vm");//此处只要指明文件名就可以了.
            VelocityContext context = new VelocityContext();

            for (ISuite suite : suites) {
                Map<String, ISuiteResult> suiteResults = suite.getResults();
                for (ISuiteResult suiteResult : suiteResults.values()) {
                    ReporterData data = new ReporterData();
                    ITestContext testContext = suiteResult.getTestContext();
                    // 把数据填入上下文
                    context.put("overView", data.testContext(testContext));//测试结果汇总信息
                    //ITestNGMethod[] allTests = testContext.getAllTestMethods();//所有的测试方法
                    //Collection<ITestNGMethod> excludeTests = testContext.getExcludedMethods();//未执行的测试方法
                    IResultMap passedTests = testContext.getPassedTests();//测试通过的测试方法
                    IResultMap failedTests = testContext.getFailedTests();//测试失败的测试方法
                    IResultMap skippedTests = testContext.getSkippedTests();//测试跳过的测试方法
                    //IResultMap starttime=testContext.getStartDate();
                    //IResultMap endtime=testContext.getEndDate();

                    context.put("pass", data.testResults(passedTests, ITestResult.SUCCESS));
                    context.put("fail", data.testResults(failedTests, ITestResult.FAILURE));
                    context.put("skip", data.testResults(skippedTests, ITestResult.FAILURE));
                }
            }
            // 输出流

                    OutputStream out = new FileOutputStream("report.html");
                    Writer writer = new BufferedWriter(new OutputStreamWriter(out, "utf-8"));//解决乱码问题
            // 转换输出
            t.merge(context, writer);
            //System.out.println(writer.toString());
            writer.flush();
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
    }