SpringBoot Vert.x 五（Body as Json）
在应用场景中 ，经常有提交Body 为 json的场景
当然 vertx 也对这方面有对应的处理
新增注解
/**
* request body as json
*
* @author pencilso
* @date 2020/1/23 10:27 下午
*/
@Target({ElementType.TYPE, ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
public @interface RequestBody {
}
再次改造VerticleMain 里的 registerControllerMethod 方法
增加判断是否有 @RequestBody 的判断
private void registerControllerMethod(@NotNull Router router, @NotNull RequestMapping classRequestMapping, @NotNull Class<?> controllerClass, @NotNull Object controller) {
//获取控制器里的方法
Method[] controllerClassMethods = controllerClass.getMethods();
Arrays.asList(controllerClassMethods).stream()
.filter(method -> method.getAnnotation(RequestMapping.class) != null)
.forEach(method -> {
try {
RequestMapping methodRequestMapping = method.getAnnotation(RequestMapping.class);
String superPath = classRequestMapping.value()[0];
String methodPath = methodRequestMapping.value()[0];
//if api path empty skip
if (StringUtils.isEmpty(superPath) || StringUtils.isEmpty(methodPath)) return;
String url = VerticleUtils.buildApiPath(superPath, methodPath);
//build route
Route route = VerticleUtils.buildRouterUrl(url, router, methodRequestMapping.method());
//run controller method get Handler object
Handler<RoutingContext> methodHandler = (Handler<RoutingContext>) method.invoke(controller);
//register bodyAsJson handler
Optional.ofNullable(method.getAnnotation(RequestBody.class)).ifPresent(requestBody -> {
route.handler(BodyHandler.create());
});
//register controller mthod Handler object
RequestBlockingHandler requestBlockingHandler = Optional.ofNullable(method.getAnnotation(RequestBlockingHandler.class)).orElseGet(() -> controllerClass.getAnnotation(RequestBlockingHandler.class));
if (requestBlockingHandler != null) {
//register blocking handler
route.blockingHandler(methodHandler);
} else {
route.handler(methodHandler);
}
log.info("register controller -> [{}] method -> [{}] url -> [{}] ", controllerClass.getName(), method.getName(), url);
} catch (Exception e) {
log.error("registerControllerMethod fail controller: [{}] method: [{}]", controllerClass, method.getName());
}
});
}
新增参数Moel
@Data
public class LoginModel {
private String username;
private String password;
}
写一个POST 请求示例
@RequestBody
@RequestMapping(value = "userLogin", method = RequestMethod.POST)
public ControllerHandler userLogin() {
return vertxRequest -> {
LoginModel loginModel = vertxRequest.getBodyJsonToBean(LoginModel.class);
vertxRequest.buildVertxRespone().responeSuccess(loginModel);
};
}
使用Postman 测试调用 不出意外的话 是成功的
另外 顺便记一下我之前遇到的一个问题
这种写法 vertxRequest.getParam("xxxx") 在POST 情况下 是无法接收到参数的
需要添加@RequestBody 后才可以接收到参数
@RequestMapping(value = "userLogin", method = RequestMethod.POST)
public ControllerHandler userLogin() {
return vertxRequest -> {
String username = vertxRequest.getParam("username").orElse("not found");
String password = vertxRequest.getParam("password").orElse("not found");
Map<String, String> map = new HashMap<>();
map.put("username", username);
map.put("password", password);
vertxRequest.buildVertxRespone().responeSuccess(map);
};
}