java 导出word

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导入jar

    <dependency>      <groupId>org.freemarker</groupId>      <artifactId>freemarker</artifactId>      <version>2.3.23</version>    </dependency>

word模版

ftl
生成word

这里注意ftl中的语法可以参考 https://hran.me/archives/freemarker.html/comment-page-3#menu_index_9

java 代码

  @GetMapping(value = "/createUserListWord")  public ResponseEntity<Void> createUserListWord() {    fileService.createUserListWord();    return ResponseEntity.ok().build();  }

 @Override  public void createUserListWord() {    Map<?, ?> root = initData();  //数据源对象    String template = "/templates/list1.ftl";  //模板文件的地址    String path = "E:\\list1.doc";  //生成的word文档的输出地址    WordUtil.process(root, template, path);  }

  private Map<?, ?> initData() {    Map<String, Object> root = new HashMap<String, Object>();    List<User> users = new ArrayList<User>();    List<String> list = new ArrayList<>();    Map<String, String> map = new HashMap<>();    map.put("11", "林陈策");    map.put("22", "林陈策");    list.add("□");    list.add("□");    list.add("√");    list.add("□");    User zhangsan = new User("张三", "12", list, map);    User lisi = new User("李四", "12", list, map);    users.add(zhangsan);    users.add(lisi);    root.put("users", users);    root.put("title", "用户列表");    return root;  }

/** * Created by lcc on 2017/9/13. */import freemarker.template.Configuration;import freemarker.template.Template;import java.io.*;import java.util.Map;public final class WordUtil {  private static Configuration configuration = null;  private WordUtil() {    throw new AssertionError();  }  /**   * 根据模板生成相应的文件   *   * @param root     保存数据的map   * @param template 模板文件的地址   * @param path     生成的word文档输出地址   * @return   */  public static synchronized File process(Map<?, ?> root, String template, String path) {    if (null == root) {      throw new RuntimeException("数据不能为空");    }    if (null == template) {      throw new RuntimeException("模板文件不能为空");    }    if (null == path) {      throw new RuntimeException("输出路径不能为空");    }    File file = new File(path);    String templatePath = template.substring(0, template.lastIndexOf("/"));    String templateName = template.substring(template.lastIndexOf("/") + 1, template.length());    if (null == configuration) {      configuration = new Configuration(Configuration.VERSION_2_3_23);  // 这里Configurantion对象不能有两个，否则多线程访问会报错      configuration.setDefaultEncoding("utf-8");      configuration.setClassicCompatible(true);    }    configuration.setClassForTemplateLoading(WordUtil.class, templatePath);    Template t = null;    try {      t = configuration.getTemplate(templateName);      Writer w = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file), "utf-8"));      t.process(root, w);  // 这里w是一个输出地址，可以输出到任何位置，如控制台，网页等      w.close();    } catch (Exception e) {      throw new RuntimeException(e);    }    return file;  }}

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