环境情况

ES版本

{
  "name" : "TEAsXa0",
  "cluster_name" : "elasticsearch_apple",
  "cluster_uuid" : "v0c634MwS4yoIbzJyT0lTA",
  "version" : {
    "number" : "6.8.1",
    "build_flavor" : "oss",
    "build_type" : "tar",
    "build_hash" : "1fad4e1",
    "build_date" : "2019-06-18T13:16:52.517138Z",
    "build_snapshot" : false,
    "lucene_version" : "7.7.0",
    "minimum_wire_compatibility_version" : "5.6.0",
    "minimum_index_compatibility_version" : "5.0.0"
  },
  "tagline" : "You Know, for Search"
}

Spring boot data

<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-elasticsearch</artifactId>
        </dependency>

具体使用spring-boot-starter-data-elasticsearch:2.1.6.RELEASE版本

报错如下：

Caused by: org.springframework.data.mapping.PropertyReferenceException: No property ss found for type Long! Traversed path: Book.saleCnt.
    at org.springframework.data.mapping.PropertyPath.<init>(PropertyPath.java:94) ~[spring-data-commons-2.1.9.RELEASE.jar:2.1.9.RELEASE]
    at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:382) ~[spring-data-commons-2.1.9.RELEASE.jar:2.1.9.RELEASE]
    at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:358) ~[spring-data-commons-2.1.9.RELEASE.jar:2.1.9.RELEASE]
    at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:392) ~[spring-data-commons-2.1.9.RELEASE.jar:2.1.9.RELEASE]
    at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:416) ~[spring-data-commons-2.1.9.RELEASE.jar:2.1.9.RELEASE]
    at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:358) ~[spring-data-commons-2.1.9.RELEASE.jar:2.1.9.RELEASE]
    at org.springframework.data.mapping.PropertyPath.lambda$from$0(PropertyPath.java:311) ~[spring-data-commons-2.1.9.RELEASE.jar:2.1.9.RELEASE]
    at java.util.concurrent.ConcurrentMap.computeIfAbsent(ConcurrentMap.java:324) ~[na:1.8.0_181]
    at org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:293) ~[spring-data-commons-2.1.9.RELEASE.jar:2.1.9.RELEASE]
    at org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:276) ~[spring-data-commons-2.1.9.RELEASE.jar:2.1.9.RELEASE]

对应org.springframework.data.mapping.PropertyPath.from(源码：

public static PropertyPath from(String source, TypeInformation<?> type) {
        Assert.hasText(source, "Source must not be null or empty!");
        Assert.notNull(type, "TypeInformation must not be null or empty!");
        return (PropertyPath)CACHE.computeIfAbsent(PropertyPath.Key.of(type, source), (it) -> {
            List<String> iteratorSource = new ArrayList();
            Matcher matcher = isQuoted(it.path) ? SPLITTER_FOR_QUOTED.matcher(it.path.replace("\\Q", "").replace("\\E", "")) : SPLITTER.matcher("_" + it.path);

            while(matcher.find()) {
                iteratorSource.add(matcher.group(1));
            }

            Iterator<String> parts = iteratorSource.iterator();
            PropertyPath result = null;
            Stack current = new Stack();

            while(parts.hasNext()) {
                if (result == null) {
                    result = create((String)parts.next(), it.type, current);
                    current.push(result);
                } else {
                    current.push(create((String)parts.next(), current));
                }
            }

            if (result == null) {
                throw new IllegalStateException(String.format("Expected parsing to yield a PropertyPath from %s but got null!", source));
            } else {
                return result;
            }
        });
    }

在对实体做Mapping时候是根据属性名字来映射Repository中的方法的，如下

public interface BookRepository extends ElasticsearchRepository<Book, String> {

方法名称中必须和实体属性对应，除了关键字And、Or、Not、Like等，类似JPA的方式，修改错误字母程序test通过。