在 Maven 中使用 freemarker

Question

抱歉，如果这个问题看起来有点愚蠢，我正在为一个项目发现 Maven 和 Freemarker，在浏览 Freemarker 的文档时，我看到了放置在 pom.xml 文件中的 xml 代码，以将 freemarker 作为项目的依赖项包含在内，我制作了一个小测试类来尝试获取我的第一个输出文件，但我收到错误消息，指出未处理不同的异常类型。我应该做任何其他事情来使用 freemarker 吗？

我的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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>Training</groupId>
  <artifactId>Proj-1</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  
  <properties>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>

<dependencies>
    <dependency>
        <groupId>dom4j</groupId>
        <artifactId>dom4j</artifactId>
        <version>1.6.1</version>
    </dependency>
    
    <dependency>
        <groupId>org.freemarker</groupId>
        <artifactId>freemarker</artifactId>
        <version>2.3.32</version>
    </dependency>
    
</dependencies>
</project>

我的主要java代码

import java.io.File;
import java.io.FileWriter;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;

import freemarker.template.Configuration;
import freemarker.template.Template;
import freemarker.template.TemplateExceptionHandler;
import freemarker.template.Version;

public class MainTest {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
          // 1. Configure FreeMarker
        //
        // You should do this ONLY ONCE, when your application starts,
        // then reuse the same Configuration object elsewhere.

        Configuration cfg = new Configuration();

        // Where do we load the templates from:
        cfg.setClassForTemplateLoading(MainTest.class, "src/templates");

        // Some other recommended settings:
        cfg.setIncompatibleImprovements(new Version(2, 3, 20));
        cfg.setDefaultEncoding("UTF-8");
        cfg.setLocale(Locale.US);
        cfg.setTemplateExceptionHandler(TemplateExceptionHandler.RETHROW_HANDLER);

        // 2. Process template(s)
        //
        // You will do this for several times in typical applications.

        // 2.1. Prepare the template input:

        Map<String, Object> input = new HashMap<String, Object>();

        input.put("title", "Vogella example");

        input.put("exampleObject", new ValueExampleObject("Java object", "me"));

        List<ValueExampleObject> systems = new ArrayList<ValueExampleObject>();
        systems.add(new ValueExampleObject("Android", "Google"));
        systems.add(new ValueExampleObject("iOS States", "Apple"));
        systems.add(new ValueExampleObject("Ubuntu", "Canonical"));
        systems.add(new ValueExampleObject("Windows7", "Microsoft"));
        input.put("systems", systems);

        // 2.2. Get the template

        Template template = cfg.getTemplate("helloworld.ftl");

        // 2.3. Generate the output

        // Write output to the console
        Writer consoleWriter = new OutputStreamWriter(System.out);
        template.process(input, consoleWriter);

        // For the sake of example, also write output into a file:
        Writer fileWriter = new FileWriter(new File("output.html"));
        try {
            template.process(input, fileWriter);
        } finally {
            fileWriter.close();
        }
    }

感谢您的帮助:)