dubbo接口泛化调用例子

时间:2022-11-26 19:20:02
@ApiOperation(value = "dubbo泛化调用工具接口")
public Result dubboApiTool(
@ApiParam(value = "interfaceName", defaultValue = "com.shop.api.ShopService") @Param(value = "interfaceName", required = true) String interfaceName,
@ApiParam(value = "methodName", defaultValue = "loadShopByCode") @Param(value = "methodName", required = true) String methodName,
@ApiParam(value = "接口入参列表", defaultValue = "[]")
@Json(value = "methodParams", array = Object.class, defaultValue = "[]") List<Object> methodParams,
HttpServletRequest request) throws ClassNotFoundException { // 校验登录
Result checkLoginResult = CommonUtil.loginAuthVerify(request);
if (!checkLoginResult.isSuccess()) {
log.error("未登录用户无权限执行此操作");
return checkLoginResult;
} if (!OptimusConfig.getValue("TOOL_API_OPERATORS_MOBILES")
.contains(((Principal) checkLoginResult.getData()).getUserPhone())) {
return Result.fail("401", "当前用户无操作权限");
} ApplicationConfig application = new ApplicationConfig();
application.setName("api-generic-consumer-zjt"); RegistryConfig registry = new RegistryConfig();
registry.setAddress(OptimusConfig.getValue("dubbo.registry.address", "zookeeper://stable.zk.scsite.net:2181"));
application.setRegistry(registry); ReferenceConfig<GenericService> reference = new ReferenceConfig<GenericService>();
// 弱类型接口名
reference.setInterface(interfaceName);
// 声明为泛化接口
reference.setGeneric(true); reference.setApplication(application); // 用com.alibaba.dubbo.rpc.service.GenericService可以替代所有接口引用
GenericService genericService = reference.get(); /**
* GenericService 这个接口只有一个方法,名为 $invoke,它接受三个参数,分别为方法名、方法参数类型数组和参数值数组;
* 对于方法参数类型数组 如果是基本类型,如 int 或 long,可以使用 int.class.getName()获取其类型; 如果是基本类型数组,如
* int[],则可以使用 int[].class.getName(); 如果是 POJO,则直接使用全类名,如
* com.alibaba.dubbo.samples.generic.api.Params。
*/ //全部方法
Method[] methods = Class.forName(interfaceName).getMethods(); Method method = Arrays.stream(methods).filter(m ->
methodName.equalsIgnoreCase(m.getName())
&& methodParams.size()==m.getParameterTypes().length)
.findFirst().get(); Class[] params = method.getParameterTypes(); List<String> paramNameList = Arrays.stream(params).map(p -> p.getName()).collect(Collectors.toList()); Map map = (Map) genericService.$invoke(methodName,
paramNameList.toArray(new String[paramNameList.size()]),
methodParams.toArray(new Object[methodParams.size()])); return Result.success(new JSONObject(map).toJSONString()); }