修改impl注入为接口注入，更符合代码规范

src/main/java/com/yxproject/start/api/ReadXmlApi.java

@@ -4,7 +4,7 @@ import com.yxproject.start.dto.PreproPersonDto;
 import com.yxproject.start.entity.CountDataEntity;
 import com.yxproject.start.entity.FilesEntity;
 import com.yxproject.start.service.ImportXmlService;
-import com.yxproject.start.service.impl.PreproPersonServiceImpl;
+import com.yxproject.start.service.PreproPersonService;
 import com.yxproject.start.utils.IDCardFactory;
 import com.yxproject.start.utils.YXJSONResponse;
 import com.yxproject.start.utils.YXStringUtils;
@@ -32,11 +32,9 @@ import javax.ws.rs.Consumes;
 import javax.ws.rs.Produces;
 import javax.ws.rs.core.Context;
 import javax.ws.rs.core.MediaType;
-import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.UnsupportedEncodingException;
-import java.time.LocalDate;
 import java.util.*;
 
 @RestController
@@ -44,13 +42,13 @@ import java.util.*;
 public class ReadXmlApi {
 
     private final ImportXmlService importXmlService;
-    private final PreproPersonServiceImpl preproPersonServiceImpl;
+    private final PreproPersonService preproPersonService;
 
     Logger logger = Logger.getLogger(ReadXmlApi.class);
 
-    public ReadXmlApi(ImportXmlService importXmlService, PreproPersonServiceImpl preproPersonServiceImpl) {
+    public ReadXmlApi(ImportXmlService importXmlService, PreproPersonService preproPersonService) {
         this.importXmlService = importXmlService;
-        this.preproPersonServiceImpl = preproPersonServiceImpl;
+        this.preproPersonService = preproPersonService;
     }
 
     /**
@@ -280,7 +278,7 @@ public class ReadXmlApi {
 
     @GetMapping("exportCsv")
     public ResponseEntity<FileSystemResource> exportCsv() throws IOException {
-        String fileName = preproPersonServiceImpl.generateCsv();
+        String fileName = preproPersonService.generateCsv();
         FileSystemResource resource = new FileSystemResource(fileName);
         // 返回文件下载响应
         return ResponseEntity.ok()