java - java-与目标类作为嵌套映射和列表的RestTemplate Exchange

标签 java json spring resttemplate

我有一个Rest Template交换以获得服务。该服务返回如下响应：

回应1（单一文件）：-
    {
    “ irpage”：[{
        “抽屉”：“ HPPS”，
        “ folderNumber”：“ HPA00008047642”，
        “ docID”：“ 1”，
        “ pageNumber”：“ 1”，
        “ din”：“ HPPSHP​​A00008047642000001”，
        “ userKey1”：“ 20151119NJ”，
        “ docType”：“ APPD”，
        “ docDate”：“ 20151119”，
        “ numberPages”：“ 1”，
        “ fileName”：“ \ 12_HPPS \ 20151119 \ 5_Z000 \ SCHEDL2 \ 952490010845”，
        “ tempFileName”：“ \\ prcins.net \ Shared \ irtestnjimages01 \ 12_HPPS \ 20151119 \ 5_Z000 \ SCHEDL2 \ 952490010845.pdf”，
        “ driver”：“”，
        “ dateCaptured”：“ 20151119”，
        “ timeCaptured”：“ 08:45:04”，
        “ singleInd”：“ S”，
        “ userID”：“ SCHEDL2”​​，
        “ status”：“ U”，
        “批”：“ Z000”，
        “格式”：“ PDF”，
        “ media”：“ D”，
        “方向”：“ 0”，
        “ tempDin”：“ 12201511190845952490845SCHEDL2”​​，
        “ transType”：“ APPD”，
        “ operator”：“”，
        “ userkey2”：“ 0”，
        “ reason”：“计算机生成的文档”，
        “ archiveStatus”：“ A”，
        “ archiveDate”：“ 20151119”，
        “ deviceID”：“ 1”，
        “ packageID”：“ 1”，
        “ packageType”：“ 15007”，
        “ markedInd”：“ 0”，
        “ dspPageNumber”：“ 1”，
        “ aMedia”：“”，
        “ aDrive”：“”，
        “ description”：“输出”，
        “ folderName”：“ GAIL BARTLING”，
        “ docDescription”：“申请文件”，
        “ overlayID”：null，
        “ docIndex”：null
    }]
}

Response2（多个文件）：
{
    “ irpage”：[{
        “抽屉”：“ HPPS”，
        “ folderNumber”：“ HPA00008047642”，
        “ docID”：“ 1”，
        “ pageNumber”：“ 1”，
        “ din”：“ HPPSHP​​A00008047642000001”，
        “ userKey1”：“ 20151119NJ”，
        “ docType”：“ APPD”，
        “ docDate”：“ 20151119”，
        “ numberPages”：“ 1”，
        “ fileName”：“ \ 12_HPPS \ 20151119 \ 5_Z000 \ SCHEDL2 \ 952490010845”，
        “ tempFileName”：“ \\ prcins.net \ Shared \ irtestnjimages01 \ 12_HPPS \ 20151119 \ 5_Z000 \ SCHEDL2 \ 952490010845.pdf”，
        “ driver”：“”，
        “ dateCaptured”：“ 20151119”，
        “ timeCaptured”：“ 08:45:04”，
        “ singleInd”：“ S”，
        “ userID”：“ SCHEDL2”​​，
        “ status”：“ U”，
        “批”：“ Z000”，
        “格式”：“ PDF”，
        “ media”：“ D”，
        “方向”：“ 0”，
        “ tempDin”：“ 12201511190845952490845SCHEDL2”​​，
        “ transType”：“ APPD”，
        “ operator”：“”，
        “ userkey2”：“ 0”，
        “ reason”：“计算机生成的文档”，
        “ archiveStatus”：“ A”，
        “ archiveDate”：“ 20151119”，
        “ deviceID”：“ 1”，
        “ packageID”：“ 1”，
        “ packageType”：“ 15007”，
        “ markedInd”：“ 0”，
        “ dspPageNumber”：“ 1”，
        “ aMedia”：“”，
        “ aDrive”：“”，
        “ description”：“输出”，
        “ folderName”：“ GAIL BARTLING”，
        “ docDescription”：“申请文件”，
        “ overlayID”：null，
        “ docIndex”：null
    }，{
        “抽屉”：“ HPPS”，
        “ folderNumber”：“ HPA00008047642”，
        “ docID”：“ 4”，
        “ pageNumber”：“ 1”，
        “ din”：“ HPPSHP​​A00008047642000004”，
        “ userKey1”：“ 20160104NJ”，
        “ docType”：“ FINA”，
        “ docDate”：“ 20160104”，
        “ numberPages”：“ 1”，
        “ fileName”：“ \ 12_HPPS \ 20160105 \ 5_Z000 \ SCHEDL2 \ 308070010819”，
        “ tempFileName”：“ \\ prcins.net \ Shared \ irtestnjimages01 \ 12_HPPS \ 20160105 \ 5_Z000 \ SCHEDL2 \ 308070010819.pdf”，
        “ driver”：“”，
        “ dateCaptured”：“ 20160105”，
        “ timeCaptured”：“ 08:19:30”，
        “ singleInd”：“ S”，
        “ userID”：“ SCHEDL2”​​，
        “ status”：“ U”，
        “批”：“ Z000”，
        “格式”：“ PDF”，
        “ media”：“ D”，
        “方向”：“ 0”，
        “ tempDin”：“ 12201601050819308070819SCHEDL2”​​，
        “ transType”：“ FINA”，
        “ operator”：“”，
        “ userkey2”：“ 0”，
        “ reason”：“计算机生成的文档”，
        “ archiveStatus”：“ A”，
        “ archiveDate”：“ 20160105”，
        “ deviceID”：“ 1”，
        “ packageID”：“ 4”，
        “ packageType”：“ 15007”，
        “ markedInd”：“ 0”，
        “ dspPageNumber”：“ 1”，
        “ aMedia”：“”，
        “ aDrive”：“”，
        “ description”：“输出”，
        “ folderName”：“ GAIL BARTLING”，
        “ docDescription”：“最终取消通知”，
        “ overlayID”：null，
        “ docIndex”：null
    }]
}

当我提供Class targetClass作为
    新的HashMap >>（）。getClass（）
 Response2被解析，我在Map中得到结果，但是response1（Single Document）不起作用，并返回null。

或者如果我将Class targetClass作为新的HashMap >（）。getClass（）提供，则Response1会被解析，并且我会在Map中得到结果，但是response2（Multiple Documents）不会无法正常工作并返回null。

我不确定如何处理和解析服务的两个响应？

responseMap =  restUtils.findDocuments(urlBuilder.build(),new HashMap<String,List<Map<String,String>>>().getClass());


**RestUtils Class:** 
public <E> E findDocuments(String url,Class<E> targetClass) throws JsonProcessingException {

    MultiValueMap<String, String> headers = new LinkedMultiValueMap<String, String>();
    headers.add(ACCEPT, MediaType.APPLICATION_JSON_VALUE);
    headers.add(CONTENT_TYPE,MediaType.APPLICATION_JSON_VALUE);
    //headers.add("id", StringUtils.trimToEmpty(policyNo));
    HttpEntity<Object> requestEntity = new HttpEntity<Object>(headers);
    ResponseEntity<E> response = restTemplate.exchange(url,HttpMethod.GET, requestEntity, targetClass);
    ObjectMapper mapper = new ObjectMapper();
    String jsonResponse = mapper.writeValueAsString(response); 
    System.out.println(jsonResponse);

    return (E) response.getBody();
}


任何帮助将不胜感激。

最佳答案

回应1（单一文件）：-

{  
 "irpage":[  
  {  
     "drawer":"HPPS",
     "folderNumber":"HPA00008047642",
     "docID":"1",
     "pageNumber":"1",
     "din":"HPPSHPA00008047642000001",
     "userKey1":"20151119NJ",
     "docType":"APPD",
     "docDate":"20151119",
     "numberPages":"1",
     "fileName":"\12_HPPS\20151119\5_Z000\SCHEDL2\952490010845",
     "tempFileName":"\\prcins.net\Shared\irtestnjimages01\12_HPPS\20151119\5_Z000\SCHEDL2\952490010845.pdf",
     "driver":"",
     "dateCaptured":"20151119",
     "timeCaptured":"08:45:04",
     "singleInd":"S",
     "userID":"SCHEDL2",
     "status":"U",
     "batch":"Z000",
     "format":"PDF",
     "media":"D",
     "orientation":"0",
     "tempDin":"12201511190845952490845SCHEDL2",
     "transType":"APPD",
     "operator":"",
     "userkey2":"0",
     "reason":"Computer Generated Document",
     "archiveStatus":"A",
     "archiveDate":"20151119",
     "deviceID":"1",
     "packageID":"1",
     "packageType":"15007",
     "markedInd":"0",
     "dspPageNumber":"1",
     "aMedia":"",
     "aDrive":"",
     "description":"Output",
     "folderName":"GAIL BARTLING",
     "docDescription":"Application Document",
     "overlayID":null,
     "docIndex":null
  }
 ]
}


Response2（多个文件）

{  
 "irpage":[  
  {  
     "drawer":"HPPS",
     "folderNumber":"HPA00008047642",
     "docID":"1",
     "pageNumber":"1",
     "din":"HPPSHPA00008047642000001",
     "userKey1":"20151119NJ",
     "docType":"APPD",
     "docDate":"20151119",
     "numberPages":"1",
     "fileName":"\12_HPPS\20151119\5_Z000\SCHEDL2\952490010845",
     "tempFileName":"\\prcins.net\Shared\irtestnjimages01\12_HPPS\20151119\5_Z000\SCHEDL2\952490010845.pdf",
     "driver":"",
     "dateCaptured":"20151119",
     "timeCaptured":"08:45:04",
     "singleInd":"S",
     "userID":"SCHEDL2",
     "status":"U",
     "batch":"Z000",
     "format":"PDF",
     "media":"D",
     "orientation":"0",
     "tempDin":"12201511190845952490845SCHEDL2",
     "transType":"APPD",
     "operator":"",
     "userkey2":"0",
     "reason":"Computer Generated Document",
     "archiveStatus":"A",
     "archiveDate":"20151119",
     "deviceID":"1",
     "packageID":"1",
     "packageType":"15007",
     "markedInd":"0",
     "dspPageNumber":"1",
     "aMedia":"",
     "aDrive":"",
     "description":"Output",
     "folderName":"GAIL BARTLING",
     "docDescription":"Application Document",
     "overlayID":null,
     "docIndex":null
  },
  {  
     "drawer":"HPPS",
     "folderNumber":"HPA00008047642",
     "docID":"4",
     "pageNumber":"1",
     "din":"HPPSHPA00008047642000004",
     "userKey1":"20160104NJ",
     "docType":"FINA",
     "docDate":"20160104",
     "numberPages":"1",
     "fileName":"\12_HPPS\20160105\5_Z000\SCHEDL2\308070010819",
     "tempFileName":"\\prcins.net\Shared\irtestnjimages01\12_HPPS\20160105\5_Z000\SCHEDL2\308070010819.pdf",
     "driver":"",
     "dateCaptured":"20160105",
     "timeCaptured":"08:19:30",
     "singleInd":"S",
     "userID":"SCHEDL2",
     "status":"U",
     "batch":"Z000",
     "format":"PDF",
     "media":"D",
     "orientation":"0",
     "tempDin":"12201601050819308070819SCHEDL2",
     "transType":"FINA",
     "operator":"",
     "userkey2":"0",
     "reason":"Computer Generated Document",
     "archiveStatus":"A",
     "archiveDate":"20160105",
     "deviceID":"1",
     "packageID":"4",
     "packageType":"15007",
     "markedInd":"0",
     "dspPageNumber":"1",
     "aMedia":"",
     "aDrive":"",
     "description":"Output",
     "folderName":"GAIL BARTLING",
     "docDescription":"Final Notice of Cancellation",
     "overlayID":null,
     "docIndex":null
  }
 ]
}


我会这样解决

        Gson gson = new GsonBuilder().create();
        responseObject = gson.fromJson(jsonString, MyClass.class);


我的课

public class MyClass {
    List<ArrayEntry> irpage;

    public class ArrayEntry {
        String drawer;
        String folderNumber;
        ...
    }
}


使用您需要的修饰符（公共/私人）

Maven对Gson的依赖

    <dependency>
        <groupId>com.google.code.gson</groupId>
        <artifactId>gson</artifactId>
        <version>2.4</version>
    </dependency>

关于java - java-与目标类作为嵌套映射和列表的RestTemplate Exchange，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/35950576/

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