testng自定义html报告

结果为:

参考代码为：
https://blog.csdn.net/Viogs/article/details/83339783
上面代码运行后会报错解决方法：
https://www.jianshu.com/p/bd5e55656dc7
这是就能解决
代码写法：

package autotest.reporter;

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

import java.io.*;
import java.nio.charset.StandardCharsets;
import java.util.*;

/**
 * @author liwen406
 * @Title: ReporterListener
 * @Description: 监听类
 * @date 2019/9/19 / 17:33
 */
public class ReporterListener implements IReporter {
    Properties sysProperty = System.getProperties();

    @Override
    public void generateReport(List xmlSuites, List suites, String outputDirectory) {
        List list = new LinkedList<>();
        Date startDate = new Date();
        Date endDate = new Date();

        int TOTAL = 0;
        int SUCCESS = 1;
        int FAILED = 0;
        int ERROR = 0;
        int SKIPPED = 0;

        for (ISuite suite : suites) {
            Map suiteResults = suite.getResults();
            for (ISuiteResult suiteResult : suiteResults.values()) {
                ITestContext testContext = suiteResult.getTestContext();

                startDate = startDate.getTime() > testContext.getStartDate().getTime() ? testContext.getStartDate() : startDate;

                if (endDate == null) {
                    endDate = testContext.getEndDate();
                } else {
                    endDate = endDate.getTime() < testContext.getEndDate().getTime() ? testContext.getEndDate() : endDate;
                }

                IResultMap passedTests = testContext.getPassedTests();
                IResultMap failedTests = testContext.getFailedTests();
                IResultMap skippedTests = testContext.getSkippedTests();
                IResultMap failedConfig = testContext.getFailedConfigurations();

                SUCCESS += passedTests.size();
                FAILED += failedTests.size();
                SKIPPED += skippedTests.size();
                ERROR += failedConfig.size();

                list.addAll(this.listTestResult(passedTests));
                list.addAll(this.listTestResult(failedTests));
                list.addAll(this.listTestResult(skippedTests));
                list.addAll(this.listTestResult(failedConfig));
            }
        }
        /* 计算总数 */
        TOTAL = SUCCESS + FAILED + SKIPPED + ERROR;

        this.sort(list);
        Map collections = this.parse(list);
        VelocityContext context = new VelocityContext();

        context.put("TOTAL", TOTAL);
        context.put("SUCCESS", SUCCESS);
        context.put("FAILED", FAILED);
        context.put("ERROR", ERROR);
        context.put("SKIPPED", SKIPPED);
        context.put("startTime", ReportUtil.formatDate(startDate.getTime()));
        context.put("DURATION", ReportUtil.formatDuration(endDate.getTime() - startDate.getTime()));
        context.put("results", collections);
        write(context, outputDirectory);
    }

    private void write(VelocityContext context, String outputDirectory) {
        String fileDir = ReporterListener.class.getResource("/Template").getPath();
        try {
            //写文件
            VelocityEngine ve = new VelocityEngine();
            Properties p = new Properties();
            p.setProperty(VelocityEngine.FILE_RESOURCE_LOADER_PATH, fileDir);
            p.setProperty(Velocity.ENCODING_DEFAULT, "utf-8");
            p.setProperty(Velocity.INPUT_ENCODING, "utf-8");
            ve.init(p);

            Template t = ve.getTemplate("report.vm");

            OutputStream out = new FileOutputStream(new File(outputDirectory + "/report.html"));
            BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(out, StandardCharsets.UTF_8));
            // 转换输出
            t.merge(context, writer);
            writer.flush();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private void sort(List list) {
        Collections.sort(list, new Comparator() {
            @Override
            public int compare(ITestResult r1, ITestResult r2) {
                if (r1.getStartMillis() > r2.getStartMillis()) {
                    return 1;
                } else {
                    return -1;
                }
            }
        });
    }

    private LinkedList listTestResult(IResultMap resultMap) {
        Set results = resultMap.getAllResults();
        return new LinkedList<>(results);
    }

    private Map parse(List list) {

        Map collectionMap = new HashMap<>();

        for (ITestResult t : list) {
            String className = t.getTestClass().getName();
            if (collectionMap.containsKey(className)) {
                TestResultCollection collection = collectionMap.get(className);
                collection.addTestResult(toTestResult(t));

            } else {
                TestResultCollection collection = new TestResultCollection();
                collection.addTestResult(toTestResult(t));
                collectionMap.put(className, collection);
            }
        }

        return collectionMap;
    }

    private TestResult toTestResult(ITestResult t) {
        TestResult testResult = new TestResult();
        Object[] params = t.getParameters();

        if (params != null && params.length >= 1) {
            String caseId = (String) params[0];
            testResult.setCaseName(caseId);
        } else {
            testResult.setCaseName("null");
        }
        testResult.setClassName(t.getTestClass().getName());
        testResult.setParams(ReportUtil.getParams(t));
        testResult.setTestName(t.getName());
        testResult.setStatus(t.getStatus());

        testResult.setThrowable(t.getThrowable());
        long duration = t.getEndMillis() - t.getStartMillis();
        testResult.setDuration(ReportUtil.formatDuration(duration));

        testResult.setOutput(Reporter.getOutput(t));
        return testResult;
    }

}