springboot工程集成前端编译包，用于uni-app webView工程，解决其需独立部署带来的麻烦，场景如页面-＞画布-＞图片-＞pdf

前端工程

访问方式

http://127.0.0.1:8080/context/frontEnd/index

放行

public class SecurityConfig extends WebSecurityConfigurerAdapter {
"/frontEnd/**",

SysFrontEndController

import lombok.extern.slf4j.Slf4j;
import nl.basjes.shaded.org.springframework.core.io.ClassPathResource;
import nl.basjes.shaded.org.springframework.util.AntPathMatcher;
import org.springframework.http.MediaType;
import org.springframework.http.MediaTypeFactory;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.servlet.HandlerMapping;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.InputStream;
import java.nio.ByteBuffer;
import java.nio.channels.Channels;
import java.nio.charset.Charset;
import java.util.Optional;/*** @author 蓝之静云* @date 2023-08-10 */
@RestController
@RequestMapping("/frontEnd")
@Slf4j
public class SysFrontEndController {private AntPathMatcher antPathMatcher = new AntPathMatcher();@RequestMapping("/**")public void getStaticResource(HttpServletRequest request, HttpServletResponse response) throws IOException {// 获取完整的路径String uri = (String) request.getAttribute(HandlerMapping.PATH_WITHIN_HANDLER_MAPPING_ATTRIBUTE);// 获取映射的路径String pattern = (String) request.getAttribute(HandlerMapping.BEST_MATCHING_PATTERN_ATTRIBUTE);String customPath = antPathMatcher.extractPathWithinPattern(pattern, uri);if ("index".equals(customPath)) customPath = customPath + ".html";// 按/截取String[] split = customPath.split("/");// 最后一个就是文件名String filename = split[split.length - 1];// 若是图片资源if (filename.contains(".png")|| filename.contains(".jpg")|| filename.contains(".ico")|| filename.contains(".gif")|| filename.contains(".svg")|| filename.contains(".pdf")|| filename.contains(".jpeg")) {ServletOutputStream outputStream = null;InputStream inputStream = null;try {ClassPathResource classPathResource = new ClassPathResource("static/" + customPath);inputStream = classPathResource.getInputStream();response.setContentType("image/" + filename.split("\\.")[1]);outputStream = response.getOutputStream();int len;byte[] buffer = new byte[4096];while ((len = inputStream.read(buffer)) != -1) {outputStream.write(buffer, 0, len);}outputStream.flush();} catch (Exception e) {e.printStackTrace();} finally {outputStream.close();inputStream.close();}} else {InputStream stream = Thread.currentThread().getContextClassLoader().getResourceAsStream("static/" + customPath);assert stream != null;ByteBuffer buf = ByteBuffer.allocate(stream.available());Channels.newChannel(stream).read(buf);buf.flip();String fileStr = Charset.defaultCharset().decode(buf).toString();buf.clear();Optional<MediaType> mediaType = MediaTypeFactory.getMediaType(filename);mediaType.ifPresent(type -> response.setContentType(type.toString() + ";charset=UTF-8"));response.setCharacterEncoding("UTF-8");response.getWriter().write(fileStr);}}
}

pom.xml

		<resources><resource><directory>src/main/java</directory><includes><include>**/*.xml</include></includes></resource><resource><directory>src/main/resources</directory><includes><include>**/*.*</include></includes></resource><resource><directory>src/main/webapp</directory><targetPath>META-INF/resources</targetPath><includes><include>**/*.*</include></includes></resource></resources>