Springboot2.2.8+Elasticsearch7.X整合实现简单的CRUD

下载Elasticsearch7.6.0window版（官网下载非常慢）

链接：https://pan.baidu.com/s/1-TsJOUmLez9eOr9SB6R2-A 
提取码：g5w8 

引入依赖

    4.0.0
    
        org.springframework.boot
        spring-boot-starter-parent
        2.2.8.RELEASE
         
    
    com.hhf.el
    elsearchdemo
    0.0.1-SNAPSHOT
    elsearchdemo
    Demo project for Spring Boot

    
        1.11
    

    
        
            org.springframework.boot
            spring-boot-starter-data-elasticsearch
        
        
            org.springframework.boot
            spring-boot-starter-web
        
        
            org.springframework.boot
            spring-boot-starter
        
        
            org.projectlombok
            lombok
            true
        
        
            org.springframework.boot
            spring-boot-starter-test
            test
            
                
                    org.junit.vintage
                    junit-vintage-engine
                
            
        
    

    
        
            
                org.springframework.boot
                spring-boot-maven-plugin
            
        
    

添加配置

server.port=8080
server.servlet.context-path=/hhf

spring.elasticsearch.rest.uris=http://localhost:9200
spring.elasticsearch.rest.username=elastic
spring.elasticsearch.rest.password=123456

项目结构

Model

package com.hhf.el.bean;
import com.fasterxml.jackson.annotation.JsonFormat;
import lombok.Data;
import lombok.experimental.Accessors;
import org.springframework.data.annotation.Id;
import org.springframework.data.elasticsearch.annotations.Document;
import java.io.Serializable;

@Data
@Accessors(chain = true)
@Document(indexName = "blog", type = "java")
public class BlogModel implements Serializable {

    private static final long serialVersionUID = 6320548148250372657L;

    @Id
    private String id;

    //@Field(type = FieldType.Keyword)
    private String title;

    private String content;

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public String getContent() {
        return content;
    }

    public void setContent(String content) {
        this.content = content;
    }
}

BlogRepository

package com.hhf.el.dao;

import com.hhf.el.bean.BlogModel;
import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;

public interface BlogRepository extends ElasticsearchRepository {
}

Result

package com.hhf.el.utils;

public class Result {

    private int code;
    private String msg;
    private T data;

    public static  Result success() {
        return new Result();
    }

    public static  Result success(T data) {
        return new Result<>(data);
    }

    public static  Result error(int code, String msg) {
        return new Result<>(code, msg);
    }

    public Result(int code, String msg) {
        this.code = code;
        this.msg = msg;
        this.data = null;
    }

    public Result(T data) {
        this.code = 0;
        this.msg = "success";
        this.data = data;
    }

    public Result() {
        this.code = 0;
        this.msg = "success";
        this.data = null;
    }

    public int getCode() {
        return code;
    }

    public void setCode(int code) {
        this.code = code;
    }

    public String getMsg() {
        return msg;
    }

    public void setMsg(String msg) {
        this.msg = msg;
    }

    public T getData() {
        return data;
    }

    public void setData(T data) {
        this.data = data;
    }
}

Controller

package com.hhf.el.controller;

import com.hhf.el.bean.BlogModel;
import com.hhf.el.dao.BlogRepository;
import com.hhf.el.utils.Result;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;

import java.util.ArrayList;
import java.util.List;
import java.util.Optional;

@RestController
@RequestMapping("/blog")
public class BlogController {
    @Autowired
    private BlogRepository blogRepository;

    @PostMapping("/add")
    public Result add(@RequestBody BlogModel blogModel) {
        blogRepository.save(blogModel);
        return Result.success(blogModel);
    }

    @GetMapping("/get/{id}")
    public Result getById(@PathVariable String id) {
        if (StringUtils.isEmpty(id))
            return Result.error(1,"id为空!");
        Optional blogModelOptional = blogRepository.findById(id);
        if (blogModelOptional.isPresent()) {
            BlogModel blogModel = blogModelOptional.get();
            return Result.success(blogModel);
        }
        return Result.error(2,"未找到!");
    }

    @GetMapping("/get")
    public Result getAll() {
        Iterable iterable = blogRepository.findAll();
        List list = new ArrayList<>();
        iterable.forEach(list::add);
        return Result.success(list);
    }

    @PostMapping("/update")
    public Result updateById(@RequestBody BlogModel blogModel) {
        String id = blogModel.getId();
        if (StringUtils.isEmpty(id))
            return Result.error(1,"id为空!");
        blogRepository.save(blogModel);
        return Result.success(blogModel);
    }

    @DeleteMapping("/delete/{id}")
    public Result deleteById(@PathVariable String id) {
        if (StringUtils.isEmpty(id))
            return Result.error(1,"id为空!");
        blogRepository.deleteById(id);
        return Result.success(id);
    }
}

测试（使用postman测试）

1、添加一条数据：localhost:8080/hhf/blog/add

{
	"title": "测试",
	"content": "测试一下!"
}

2、根据id查找数据 localhost:8080/hhf/blog/get/zBID4XIB_ZjyQfo7NJh8

3、查询所有

4、根据id更新数据localhost:8080/hhf/blog/update

{
	"id":"zBID4XIB_ZjyQfo7NJh8",
	"title": "测试",
	"content": "测试一下66666666666666!"
}

结果： 

5、根据id删除  localhost:8080/hhf/blog/delete/zBID4XIB_ZjyQfo7NJh8

 查找已删除的数据：