java框架中的缓存与Nosql数据存储的互补作用（j

// 实体类 Customer

@Document zvvq.cn

public class Customer {

private String id; copyright zvvq

private String name; 内容来自zvvq，别采集哟

private String address;

}

// 缓存配置类

内容来自zvvq

import com.google.common.cache.CacheBuilder; 内容来自zvvq

import com.google.common.cache.CacheLoader; zvvq.cn

import com.google.common.cache.LoadingCache; zvvq.cn

class GuavaCacheConfig {

内容来自samhan666

@Bean

copyright zvvq

public LoadingCache<String, Customer> customerCache() {

return CacheBuilder.newBuilder() zvvq

.expireAfterWrite(10, TimeUnit.MINUTES) zvvq

.maximumSize(100) zvvq好，好zvvq

.build(new CacheLoader<String, Customer>() { zvvq

@Override

public Customer load(String key) throws Exception {

return MongoDBClient.getCustomer(key); 内容来自zvvq

} copyright zvvq

}); 本文来自zvvq

} zvvq

}

// MongoDB 客户端

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public class MongoDBClient { 内容来自samhan666

... zvvq好，好zvvq

public static Customer getCustomer(String id) { zvvq好，好zvvq

// 从 MongoDB 中获取客户信息

copyright zvvq

... 内容来自samhan

} 本文来自zvvq

}

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// 控制器类

import org.springframework.beans.factory.annotation.Autowired; zvvq.cn

import org.springframework.web.bind.annotation.GetMapping; 内容来自zvvq，别采集哟

import org.springframework.web.bind.annotation.PathVariable;

copyright zvvq

import org.springframework.web.bind.annotation.RestController; zvvq好，好zvvq

@RestController zvvq

public class CustomerController { 内容来自zvvq

@Autowired

private LoadingCache<String, Customer> customerCache;

@GetMapping("/customers/{id}") zvvq

public Customer getCustomer(@PathVariable String id) { copyright zvvq

return customerCache.get(id); copyright zvvq

}

}