云搜索服务 CSS-通过Spring Boot接入集群:使用Spring Boot接入HTTPS集群（使用安全证书）

时间：2024-08-14 09:17:26

云搜索服务 CSS 通过Java接入集群

使用Spring Boot接入HTTPS集群（使用安全证书）

该场景适用于使用安全证书连接安全模式+HTTPS协议的集群。

获取安全证书（CloudSearchService.cer）。
1. 登录云搜索服务控制台。
2. 选择“集群管理”进入集群列表。
3. 单击对应集群的名称，进入集群基本信息页面。
4. 在“基本信息”页面，单击“HTTPS访问”后面的“下载证书”。
  图1 下载证书
转换安全证书（CloudSearchService.cer）。将下载的安全证书上传到客户端机器上，使用keytool工具将“.cer”证书转换成Java可以读取的“.jks”证书格式。
- 在Linux系统中，执行如下命令转换证书。
```
keytool -import -alias newname -keystore ./truststore.jks -file ./CloudSearchService.cer 
```
- 在Windows系统中，执行如下命令转换证书。
```
keytool -import -alias newname -keystore .\truststore.jks -file .\CloudSearchService.cer
```
其中，newname是由用户自定义的证书名称。

该命令执行后，会提示设置证书密码，并确认密码。请保存该密码，后续接入集群会使用。

application.properties配置文件：

    
         elasticsearch.url=host1:9200,host2:9200
elasticsearch.username=username
elasticsearch.password=password

表3 参数说明
参数	描述
host	Elasticsearch集群节点的IP地址。
username	访问集群的用户名。
password	用户名对应的密码。

配置代码：

com.xxx为项目目录，例如com.company.project。
com.xxx.repository为仓库目录，通过extends org.springframework.data.elasticsearch.repository.ElasticsearchRepository进行具体定义。

    
     
       
       
         package com.xxx.configuration;
import org.elasticsearch.client.RestHighLevelClient;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.elasticsearch.client.ClientConfiguration;
import org.springframework.data.elasticsearch.client.RestClients;
import org.springframework.data.elasticsearch.config.AbstractElasticsearchConfiguration;
import org.springframework.data.elasticsearch.repository.config.EnableElasticsearchRepositories;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.security.KeyStore;
import java.security.SecureRandom;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.TrustManager;
import javax.net.ssl.TrustManagerFactory;
import javax.net.ssl.X509TrustManager;
@Configuration
@EnableElasticsearchRepositories(basePackages = "com.xxx.repository")
@ComponentScan(basePackages = "com.xxx")
public class Config extends AbstractElasticsearchConfiguration {
    @Value("${elasticsearch.url}")
    public String elasticsearchUrl;
    @Value("${elasticsearch.username}")
    public String elasticsearchUsername;
    @Value("${elasticsearch.password}")
    public String elasticsearchPassword;
    @Override
    @Bean
    public RestHighLevelClient elasticsearchClient() {
        SSLContext sc = null;
        try {
            TrustManager[] tm = {new MyX509TrustManager(cerFilePath, cerPassword)};
            sc = SSLContext.getInstance("SSL", "SunJSSE");
            sc.init(null, tm, new SecureRandom());
        } catch (Exception e) {
            e.printStackTrace();
        }
        final ClientConfiguration clientConfiguration = ClientConfiguration.builder()
            .connectedTo(StringHostParse(elasticsearchUrl))
            .usingSsl(sc, new NullHostNameVerifier())
            .withBasicAuth(elasticsearchUsername, elasticsearchPassword)
            .build();
        return RestClients.create(clientConfiguration).rest();
    }

    private String[] StringHostParse(String hostAndPorts) {
        return hostAndPorts.split(",");
    }

    public static class MyX509TrustManager implements X509TrustManager {
        X509TrustManager sunJSSEX509TrustManager;
        MyX509TrustManager(String cerFilePath, String cerPassword) throws Exception {
            File file = new File(cerFilePath);
            if (!file.isFile()) {
                throw new Exception("Wrong Certification Path");
            }
            System.out.println("Loading KeyStore " + file + "...");
            InputStream in = new FileInputStream(file);
            KeyStore ks = KeyStore.getInstance("JKS");
            ks.load(in, cerPassword.toCharArray());
            TrustManagerFactory tmf = TrustManagerFactory.getInstance("SunX509", "SunJSSE");
            tmf.init(ks);
            TrustManager[] tms = tmf.getTrustManagers();
            for (TrustManager tm : tms) {
                if (tm instanceof X509TrustManager) {
                    sunJSSEX509TrustManager = (X509TrustManager) tm;
                    return;
                }
            }
            throw new Exception("Couldn't initialize");
        }
        @Override
        public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
        }
        @Override
        public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
        }
        @Override
        public X509Certificate[] getAcceptedIssuers() {
            return new X509Certificate[0];
        }
    }
    public static class NullHostNameVerifier implements HostnameVerifier {
        @Override
        public boolean verify(String arg0, SSLSession arg1) {
            return true;
        }
    }
}

        

      

    
   