[英]How to ingest Json String arrays with spring boot
我無法在網絡服務中正確讀取輸入的JSON文件。 我正在嘗試將一些輸入參數從簡單的String更改為Strings的數組
我的輸入JSON看起來像這樣:
{
"inputParams" : {
"speckleFilter" : "filter1",
"acdChangeType" : "My_ACD",
"filterSize" : "7",
"aoi" : "[49.219181, 49.169297, -123.21575, -123.131194]",
"acdThreshold" : "",
"backScatScale" : "sigma"
},
"inputData" : [
{ "stackId" : "1",
"state" : "new",
"uri" : "file:/C:/My/File/Name/",
"filterParams" : {
"aoi" : "[49.219181, 49.169297, -123.21575, -123.131194]",
"poi" : "",
"passDir" : "",
"sensorType" : ["sensor1"],
"contentType" : "[type1]",
"mediaType" : "[mediaType1]"}},
{
"stackId" : "1",
"state" : "new",
"uri" : "file:/C:/My/File/Name/",
"filterParams" : {
"aoi" : "[49.219181, 49.169297, -123.21575, -123.131194]",
"poi" : "",
"passDir" : "",
"sensorType" : ["sensor1"],
"contentType" : "[type1]",
"mediaType" : "[mediaType1]"}},
]
}
具體來說,將不會以這種方式讀取sensorType,並且我得到一個錯誤
Can not deserialize instance of java.util.ArrayList out of VALUE_STRING token\n
這是我的請求包裝器類:
public class FilterParams {
private String passDir;
private List<String> sensorType;
private String aoi;
private String mediaType;
private String poi;
private String contentType;
public FilterParams(){
}
public FilterParams(String passDir, List<String> sensorType, String aoi,
String mediaType, String poi, String contentType){
super();
this.passDir = passDir;
this.sensorType = sensorType;
this.aoi = aoi;
this.mediaType = mediaType;
this.poi = poi;
this.contentType = contentType;
}
//Getters and Setters....
}
輸入數據:
public class InputData {
private String stackId;
private String state;
private URI uri;
private FilterParams filterParams;
public InputData(){
}
public InputData(String stackId, String state, URI uri, FilterParams filterParams) {
super();
this.stackId = stackId;
this.state = state;
this.uri = uri;
this.filterParams = filterParams;
}
\\Getters and Setters
}
InputParams:
public class InputParams {
private String speckleFilter;
private String acdChangeType;
private String filterSize;
private String aoi;
private String acdThreshold;
private String backScatScale;
public InputParams(){
}
public InputParams(String speckleFilter, String acdChangeType, String filterSize,
String aoi, String acdThreshold, String backScatScale) {
super();
this.speckleFilter = speckleFilter;
this.acdChangeType = acdChangeType;
this.filterSize = filterSize;
this.aoi = aoi;
this.acdThreshold = acdThreshold;
this.backScatScale = backScatScale;
}
\\Getters and Setters
}
我的控制器類正在使用@RequestBody解析傳入的JSON請求:
@RequestMapping(value="/preprocessing", method = RequestMethod.POST)
public ResponseEntity<PreProcessingResponse> doProcessing ( @RequestBody PreProcessingRequest preProcessingReq ){
\\do important things
}
如果我將JSON文件sensorType的格式設置為與contentType和mediaType相同,則可以輕松解析JSON請求。 但是,我想將這些屬性更改為字符串數組(因為一個以上選項應該有效)
為了解決我的問題,我嘗試將FilterParams類中的sensorType聲明為List,ArrayList,JSONArray,String [],List,以及可能現在我忘記的其他幾個。
顯然,我完全誤解了如何使用spring的@RequestBody注釋解釋這些對象。 有人可以幫我解決一下嗎? 為什么不能只將sensorType屬性更改為字符串數組?
這整個領域對我來說還是很新的(我以前從未用Java編程過)。 因此,如果有不清楚的地方,請告訴我,我會盡力澄清。
任何幫助深表感謝!
@RequestBody使用Jackson庫將JSON轉換為POJO。 希望對您有所幫助。
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