【1】代码 

public class MybatisTest9_spring {/*** 遍历所有xml文件 */@Test public void dom4j_test2() {  System.out.println("dom4j_test2"); ResourcePatternResolver loader = new PathMatchingResourcePatternResolver();try {Resource[] resources = loader.getResources("classpath*:com/swjtu/mybatis/**/*.mapper.xml");for (Resource r : resources) { System.out.println(r.getFilename()); Document doc = Dom4jUtil.load(r.getInputStream());/* 获取根节点 */Element root = doc.getRootElement();/* 遍历  */for (Iterator<Element> it = root.elementIterator(); it.hasNext();) {Element e = it.next();System.out.println(e.getText()); /**SELECT id AS ID , last_name AS LASTNAME, email AS EMAIL , gender AS GENDERFROM emp_tbl WHERE id = #{ID}*/} }} catch (IOException e) { e.printStackTrace();}}
}

package com.swjtu.mybatis.test;import java.io.File;
import java.io.InputStream;import org.dom4j.Document;
import org.dom4j.io.SAXReader;public class Dom4jUtil {public static Document load(String fileName) {Document doc = null;try {SAXReader reader = new SAXReader();doc = reader.read(new File(fileName));} catch(Exception e) {e.printStackTrace();}return doc;}public static Document load(InputStream input) {Document doc = null;try {SAXReader reader = new SAXReader();doc = reader.read(input);} catch(Exception e) {e.printStackTrace();}return doc;}
}

【2】打印结果

dom4j_test2
ERROR StatusLogger No Log4j 2 configuration file found. Using default configuration (logging only errors to the console), or user programmatically provided configurations. Set system property 'log4j2.debug' to show Log4j 2 internal initialization logging. See https://logging.apache.org/log4j/2.x/manual/configuration.html for instructions on how to configure Log4j 2
employee.mapper.xmlSELECT id AS ID, last_name AS LASTNAME, email AS EMAIL, gender AS GENDERFROM emp_tbl WHERE id = #{ID}update emp_tblset id = #{ID}, last_name = #{LASTNAME}, email = #{EMAIL}, gender = #{GENDER}WHERE id = #{ID} zhangsan.mapper.xmlSELECT id AS ID, last_name AS LASTNAME, email AS EMAIL, gender AS GENDERFROM emp_tbl WHERE id = #{ID}update emp_tblset id = #{ID}, last_name = #{LASTNAME}, email = #{EMAIL}, gender = #{GENDER}WHERE id = #{ID}