spring-boot - Spring Boot应用程序中如何在Java中为Redis Cache设置硬编码 key ？

Question

我正在尝试使用单个Redis缓存来存储2个Web服务的响应-一个是POST，一个是GET。对于GET服务，没有请求参数可以将Webservice的响应存储在Redis中，当我尝试使用硬编码的Key进行存储时，它给出了以下错误。

null key returned for cache operation (maybe you are using named params on classes without debug info?) Builder[public java.util.Map com.getResponse() throws com.adapter.framework.assetserviceadaptor.exception.ServiceExceptions] caches=[redis-cache] | key='#AssetCache' | keyGenerator='' | cacheManager='' | cacheResolver='' | condition='' | unless='' | sync='false'

这就是我试图存储GET服务响应的方式

@Cacheable(value="redis-cache",key ="#AssetCache")
public Map<String, AssetDetailBO> getAssetsResponse() throws COAssetServiceExceptions {
    try {
        log.info("---- CO_STAGE=[ Caching Service ] ---- ");
        return mergingBrokerageAndMutulFund(assetServiceImpl.getAssetResponse());
    } catch (ServiceExceptions e) {
        log.info("---- CO_STAGE=[ Exception while Calling Assets Adapter For COT ] ---- " 
        + e.getErrorMessage());
        throw e;
    }
}

这就是我存储POST服务响应的方式，这工作正常。

@Cacheable(value="redis-cache",key ="#customerId")
public CustomerDTO retriveCustomerdetails( String customerId, String modelId, 
  String requestId) throws COException {
CustomerInfo csDTO;
try {
    csDTO = csDTOAdapterImpl.
    getCustomerDetails(customerId);
} catch (Exception e) {
    e.printStackTrace();
}
return csDTO;
}

Answer 1

您可以不使用值和其他属性(例如@Cacheable)来使用@Cacheable("all-students")
例:

@GetMapping("/student/{id}")
@Cacheable(value = "post-single", key = "#id")
public Student findStudentById(@PathVariable String id) {
    System.out.println("Searching by ID  : " + id);
    return studentService.getStudentByID(id);
}

@GetMapping("/students")
@Cacheable("all-students")
public List<Student> getAllStudents() {

    List<Student> _ = new ArrayList<>();
    _.add(studentService.getStudentByID("1"));
    return _;
}