你是正确的，@ RequestBody带注释的参数应该可以容纳请求的整个内容并绑定到一个对象，因此你基本上必须使用选项。
说这是你的json：
{
"str1": "test one",
"str2": "two test"
}
并且你想要将其绑定到此处的两个参数：
@RequestMapping(value = "/Test", method = RequestMethod.POST)
public boolean getTest(String str1, String str2)
首先@JsonArg使用JSON路径（如所需信息的路径）定义一个自定义批注say（说）：
public boolean getTest(@JsonArg("/str1") String str1, @JsonArg("/str2") String str2)
现在编写一个Custom HandlerMethodArgumentResolver，它使用上面定义的JsonPath来解析实际参数：
import java.io.IOException;
import javax.servlet.http.HttpServletRequest;
import org.apache.commons.io.IoUtils;
import org.springframework.core.MethodParameter;
import org.springframework.http.server.ServletServerHttpRequest;
import org.springframework.web.bind.support.WebDataBinderFactory;
import org.springframework.web.context.request.NativeWebRequest;
import org.springframework.web.method.support.HandlerMethodArgumentResolver;
import org.springframework.web.method.support.ModelAndViewContainer;
import com.jayway.jsonpath.JsonPath;
public class JsonPathArgumentResolver implements HandlerMethodArgumentResolver{
private static final String JSONBODYATTRIBUTE = "JSON_REQUEST_BODY";
@Override
public boolean supportsParameter(MethodParameter parameter) {
return parameter.hasParameterAnnotation(JsonArg.class);
}
@Override
public Object resolveArgument(MethodParameter parameter, ModelAndViewContainer mavContainer, NativeWebRequest webRequest, WebDataBinderFactory binderFactory) throws Exception {
String body = getRequestBody(webRequest);
String val = JsonPath.read(body, parameter.getmethodAnnotation(JsonArg.class).value());
return val;
}
private String getRequestBody(NativeWebRequest webRequest){
HttpServletRequest servletRequest = webRequest.getNativeRequest(HttpServletRequest.class);
String jsonBody = (String) servletRequest.getAttribute(JSONBODYATTRIBUTE);
if (jsonBody==null){
try {
String body = IoUtils.toString(servletRequest.getInputStream());
servletRequest.setAttribute(JSONBODYATTRIBUTE, body);
return body;
} catch (IOException e) {
throw new RuntimeException(e);
}
}
return "";
}
}
现在，只需在Spring MVC中注册即可。有点涉及，但这应该可以正常工作。
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