使用ClassGraph 读取webjars 资源文件的内容

xml version="1.0" encoding="UTF-8"?>

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>

    parent>

        groupId>org.springframework.boot/groupId>

        artifactId>spring-boot-starter-parent/artifactId>

        version>2.3.1.RELEASE/version>

        relativePath/> 

    /parent>

    groupId>com.dalong/groupId>

    artifactId>wbjarsapps/artifactId>

    version>0.0.1-SNAPSHOT/version>

    name>wbjarsapps/name>

    description>Demo project for Spring Boot/description>

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    properties>

        java.version>1.8/java.version>

    /properties>

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    dependencies>

        dependency>

            groupId>org.springframework.boot/groupId>

            artifactId>spring-boot-starter-web/artifactId>

        /dependency>

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        dependency>

            groupId>io.micrometer/groupId>

            artifactId>micrometer-registry-prometheus/artifactId>

            scope>runtime/scope>

        /dependency>

        dependency>

            groupId>org.springframework.boot/groupId>

            artifactId>spring-boot-starter-test/artifactId>

            scope>test/scope>

            exclusions>

                exclusion>

                    groupId>org.junit.vintage/groupId>

                    artifactId>junit-vintage-engine/artifactId>

                /exclusion>

            /exclusions>

        /dependency>

        dependency>

            groupId>com.dalong-web/groupId>

            artifactId>webjars/artifactId>

            version>1.0-SNAPSHOT/version>

        /dependency>

        dependency>

            groupId>io.github.classgraph/groupId>

            artifactId>classgraph/artifactId>

            version>4.8.87/version>

        /dependency>

    /dependencies>

    build>

        plugins>

            plugin>

                groupId>org.springframework.boot/groupId>

                artifactId>spring-boot-maven-plugin/artifactId>

            /plugin>

        /plugins>

    /build>

/project>

package com.dalong.wbjarsapps;

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import io.github.classgraph.ClassGraph;

import io.github.classgraph.Resource;

import io.github.classgraph.ScanResult;

import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;

import org.springframework.http.HttpHeaders;

import org.springframework.http.HttpStatus;

import org.springframework.http.ResponseEntity;

import org.springframework.util.MultiValueMap;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RestController;

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import java.nio.charset.StandardCharsets;

import java.util.ArrayList;

import java.util.List;

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@SpringBootApplication

@RestController

public class WbjarsappsApplication {

    public static void main(String[] args) {

        SpringApplication.run(WbjarsappsApplication.class, args);

    }

    @RequestMapping(value = {"/r"})

    public  Object listResources() {

         ListString> resultContents = new ArrayList();

         ClassGraph classGraph =new ClassGraph();

         try (ScanResult scanResult = classGraph.acceptPaths("META-INF/resources/webjars").scan()) {

            scanResult.getResourcesWithExtension(".js").forEachByteArrayIgnoringIOException((Resource res, byte[] content) -> {

                resultContents.add(new String(content, StandardCharsets.UTF_8));

            });

         }

         MultiValueMapString,String> headers =new HttpHeaders();

         headers.add("content-type","text/js");

         return new ResponseEntity(resultContents.get(0),headers,HttpStatus.OK);

    }

}