我不知道是否有使用的解决方案，application.properties但是这是我的解决方案，用于从每行包含一个文档的文件中导入文档。

public static void importDocumentsFromJsonFile(File file) {
        //Read each line of the json file. Each file is one observation document.
        List<Document> observationDocuments = new ArrayList<>();
        try (BufferedReader br = new BufferedReader(new FileReader(file.getPath()));) {
            String line;
            while ((line = br.readLine()) != null) {
                observationDocuments.add(Document.parse(line));
            }
        } catch (IOException ex) {
            ex.getMessage();
        }
        mongoTemplate.getCollection("yourCollection").insertMany(observationDocuments);
    }