java - 兼容 MIME 媒体类型的已注册邮件正文阅读器为 : application/json;charset=UTF-8

Question

我在服务器端使用 Spring Rest API，在客户端使用 jersey API。

我正在创建一个屏幕，它将在其中获取最后 5 位客户兑换交易。

我从服务器端返回 RedeemTransactionDetails 列表并在客户端接受相同的列表。

I had debugged server side code it's returns the valid list, and in client side response code is 200 , whereas while getting entity i'm getting error from client side.

服务器端:

    @RestController
    @RequestMapping("/rest/api")
    public class CustomerRestController {
            @Autowired private CustomerService customerService;

            @RequestMapping(value="/redeemTransactionList/{clientId}/{mobileNumber}/{numOfTransaction}" , method=RequestMethod.POST , produces = "application/json; charset=UTF-8")
            public @ResponseBody List<RedeemTransactionDetails> redeemTransaction(@PathVariable(value = "clientId") int clientId, @PathVariable(value = "mobileNumber") String mobileNumber , @PathVariable(value="numOfTransaction") int numOfTransaction) {
            LOG.debug("We are in redeemTransaction method for user {} " , clientId);
            List<RedeemTransactionDetails> redeemList = null ;
            try {
                redeemList =  customerService.redeemTransactionList(clientId, mobileNumber,numOfTransaction);

            } catch (Exception e) {
                LOG.debug("Excption while fetching redeemTransaction ");
            }
            return  redeemList;
        }
    }

客户端:

public List<RedeemTransactionDetails> getRedeemTransactions(String mobileNumber, String clientId, String numberOfTransaction) {
    log.debug("inside authenticate() ");
    List<RedeemTransactionDetails> result = null; 
    try{
        webResource = client.resource(uri + "/redeemTransactionList").path(clientId).path(mobileNumber).path(numberOfTransaction) ;
        ClientResponse response = webResource.type(MediaType.APPLICATION_JSON).post(ClientResponse.class);
        if (response.getStatus() != 200) {
            log.debug("response.getStatus() : " +  response.getStatus() );  
            throw new RuntimeException("Failed : HTTP error code : " + response.getStatus());
         } 
        response.getType() ;
        result = (List<RedeemTransactionDetails>) response.getEntity(RedeemTransactionDetails.class);
        log.debug("user Details " + result);
    }
    catch(Exception e){
        log.debug(e);
    }
    return result ;
}
}

注意:我在 pom xml 文件中使用了以下依赖项

<dependency>
        <groupId>com.sun.jersey</groupId>
        <artifactId>jersey-json</artifactId>
        <version>1.19.3</version>
    </dependency>
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.8.6</version>
</dependency>

编辑:

错误日志

SEVERE: A message body reader for Java class com.prom.via.rest.dto.RedeemTransactionDetails, and Java type class com.prom.via.rest.dto.RedeemTransactionDetails, and MIME media type application/json;charset=UTF-8 was not found
Feb 23, 2017 4:52:17 PM com.sun.jersey.api.client.ClientResponse getEntity
SEVERE: The registered message body readers compatible with the MIME media type are:
*/* ->
  com.sun.jersey.core.impl.provider.entity.FormProvider
  com.sun.jersey.core.impl.provider.entity.StringProvider
  com.sun.jersey.core.impl.provider.entity.ByteArrayProvider
  com.sun.jersey.core.impl.provider.entity.FileProvider
  com.sun.jersey.core.impl.provider.entity.InputStreamProvider
  com.sun.jersey.core.impl.provider.entity.DataSourceProvider
  com.sun.jersey.core.impl.provider.entity.XMLJAXBElementProvider$General
  com.sun.jersey.core.impl.provider.entity.ReaderProvider
  com.sun.jersey.core.impl.provider.entity.DocumentProvider
  com.sun.jersey.core.impl.provider.entity.SourceProvider$StreamSourceReader
  com.sun.jersey.core.impl.provider.entity.SourceProvider$SAXSourceReader
  com.sun.jersey.core.impl.provider.entity.SourceProvider$DOMSourceReader
  com.sun.jersey.core.impl.provider.entity.XMLRootElementProvider$General
  com.sun.jersey.core.impl.provider.entity.XMLListElementProvider$General
  com.sun.jersey.core.impl.provider.entity.XMLRootObjectProvider$General
  com.sun.jersey.core.impl.provider.entity.EntityHolderReader

Answer 1

这个问题是已知问题，stackoverflow 中已经提供了各种答案。

现在我建议您按照一些建议来解决您的问题。

建议#1:

您可以通过在 pom.xml 文件中使用以下依赖项来添加 genson jar 文件

<dependency>
    <groupId>com.owlike</groupId>
    <artifactId>genson</artifactId>
    <version>1.4</version>
</dependency>

可在以下位置找到文档:https://owlike.github.io/genson/

然后清理你的项目并构建然后运行。

资源链接:https://stackoverflow.com/a/25754441/2293534

建议#2:

您可以在 pom.xml 文件中添加 jersy bundle jar 文件。

<dependency>
    <groupId>com.sun.jersey</groupId>
    <artifactId>jersey-bundle</artifactId>
    <version>1.19.3</version>
</dependency>

这有时也可以解决问题。

资源链接:https://stackoverflow.com/a/23192776/2293534

建议#3:

检查您的实体是否包含 @XmlRootElement 注释。如果没有，请添加。

资源链接:https://stackoverflow.com/a/7388605/2293534

建议#4:

jonbros suggested that instead of using the assembly plugin for maven use the shade plugin!

You can read Read problem and full solution from here: http://jersey.576304.n2.nabble.com/issue-with-POST-when-packaging-into-jar-td5460103.html

资源链接:https://stackoverflow.com/a/4955831/2293534