[英]How to pass JSON Object and return Object from Spring rest controller
我有一个实体 class ,如下所示:
public class InputData {
byte[] nameBytes;
InputType inputType;
InputType outputType;
String inputName;
Description desc;
}
这是我的 rest controller:
@PostMapping(path = "/submitData", consumes = "application/json")
public HttpStatus callDataService(@RequestBody Map<String, String> json) {
Gson gson = new GsonBuilder().create();
InputData inputData = gson.fromJson(json.get("inputData"), InputData.class);
Report report = dataService.getReport(inputData);
//return HttpStatus.OK;
}
我有两个问题:
如何发送报告以及 Http 状态作为响应?
如何将数据发送到 controller?
我创建了以下测试用例:
@Test
public void testController() throws JSONException {
Gson gson = new Gson();
Description desc = new Description();
desc.setMinimumValidSize(512);
File file = new File("src/test/resources/sampleDocuments/test_1.pdf");
byte[] byteArray = { 'P', 'A', 'N', 'K', 'A', 'J' };
JSONObject inputSample = new JSONObject();
inputSample.put("nameBytes", byteArray);
inputSample.put("inputType", ImageType.PDF);
inputSample.put("outputType", ImageType.TIFF);
inputSample.put("inputName", "ABCDEF");
inputSample.put("desc", desc);
String result = invokeRest(fileInputSample.toString(),"/submitData", HttpMethod.POST);
assertEquals("200", result);
}
private String invokeRest(String basicParams, String inputImageType, String
outputImageType, String options, String url, HttpMethod httpMethod) {
String testUrl = "http://localhost:" + port + url;
Map<String, Object> body = new HashMap<>();
body.put("fileInput", basicParams);
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_JSON);
HttpEntity<String> entity = new HttpEntity(body, headers);
String result = "";
ResponseEntity<String> response = restTemplate.exchange(testUrl, httpMethod, entity, String.class);
if (response.getStatusCode() == HttpStatus.OK) {
result = response.getBody();
} else {
result = response.getStatusCode().toString();
}
return result;
}
当我运行这个测试用例失败时,我能够指出问题:
Expected BEGIN_OBJECT but was STRING at line 1 column 13 path $.desc
所以我猜我没有以正确的方式发送这些值
描述 POJO 如下:
public class Description {
private static final int DPI = 300;
private Ctype c = CType.NONE;
private ColorType color = DEFAULT_COLOR;
private int dpi = DPI;
}
public enum CType {
NONE, GROUPA,GROUPB,GROUPB_B,GROUPD
}
public enum ColorType {
RGB, GREY;
}
这是正在发送的值: {"desc":"org.restservice.Description@1213ffbc", "outputType":"TIFF","inputType":"PDF","nameBytes":"src/test/resources /sampleDocuments/test_16.pdf","inputName":"98111"}
如果我在正文中发送 <String, String> 的 Map,如何将其发送为 Object? 有没有其他方法可以将 object 发送到 controller?
要返回状态以及 object,您可以尝试这样做:
@PostMapping(path = "/submitData", consumes = "application/json")
public ResponseEntity<Report> callDataService(@RequestBody Map<String, String> json) {
Gson gson = new GsonBuilder().create();
InputData inputData = gson.fromJson(json.get("inputData"), InputData.class);
Report report = dataService.getReport(inputData);
return ResponseEntity.ok(report);
}
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