Spring Data Elasticsearch 启动报错 org.springframework.beans.factory.UnsatisfiedDependencyException 依赖不足_failed to instantiate [org.springframework.data.el-优快云博客

本文详细解析了SpringDataElasticsearch在启动时遇到的错误，具体表现为对coursedoc文档映射对象修改后服务启动失败的问题。错误核心在于不同类型的映射冲突，当前类型为text，而合并类型为keyword。文章还提供了通过ElasticsearchTemplate方法删除并重建索引的解决方案，并附带一篇SpringDataElasticsearch入门文章链接。

Spring Data Elasticsearch 启动报错

对文档映射对象coursedoc修改后启动服务报错

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'elasticsearchController': Unsatisfied dependency expressed through field 'courseElasticsearchRepository'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'courseElasticsearchRepository': Invocation of init method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.elasticsearch.repository.support.NumberKeyedRepository]: Constructor threw exception; nested exception is java.lang.IllegalArgumentException: mapper [name] of different type, current_type [text], merged_type [keyword]

创建名为“”org.springframework.beans.factory.UnsatisfiedDependencyException：searchController“”的Bean时出错：通过字段“”CourseElasticsearchRepository“”表示的依赖项不满足；嵌套异常是创建名为“”CourseElasticsearchRepository“”的Bean时出现org.springframework.beans.factory.BeanCreationException：错误：调用init方法失败；嵌套异常是org.springframework.beans.BeanInstantiationException：无法实例化[org.springframework.data.elasticsearch.repository.support.NumberKeyedRepository]：构造函数引发的异常；嵌套异常是java.lang.IllegalArgumentException：不同类型、CURRENT_TYPE[TEXT]、MERMERED_TYPE[KEYWORD]的映射器[NAME]。“

然后想通过ElasticsearchTemplate 的方法来删除索引重新创建

@Test
public void testesdelindex(){
    elasticsearchTemplate.deleteIndex(CourseDoc.class);
}

报错，无法执行

最后，打开kibana

DELETE hrm admin是我的索引名

GET _mapping 查询索引库被删除

再重新创建索引库

@Test
public void createIndex(){
    //创建索引库
    elasticsearchTemplate.createIndex(CourseDoc.class);
    //文档映射
    elasticsearchTemplate.putMapping(CourseDoc.class);
}

最后发现了一片介绍Spring Data Elasticsearch很详细的入门文章

https://www.jianshu.com/p/930c803a4ebd