Fail to decode request due to: RpcInvocation

chua1989 commented 7 years ago

完整的错误是： Fail to decode request due to: RpcInvocation[methodName=getAvailableQuickPayBankMap, parameterTypes=[], arguments=null, attachments={dubbo=2.8.4, input=220, path=com.njq.nongfadai.service.IBankService, version=1.0.0}

代码：

const nzd = require('node-zookeeper-dubbo');
const app = require('express')();
const opt = {
  application: {
    name: 'nongfadai-dubbo-provider'
  },
  register: '10.1.60.23:2181',
  dubboVer: '2.8.4',
  root: 'dubbo',
  dependencies: {
    IBankService: {
      interface: 'com.njq.nongfadai.service.IBankService',
      version: '1.0.0',
      timeout: 30000
    }
  }
};
//转换类型使用的例子：https://github.com/node-modules/js-to-java
opt.java = require('js-to-java');

const Dubbo = new nzd(opt);

//无参数的例子
app.get('/IBankService/getAvailableQuickPayBankMap', (req, res) => {
  Dubbo.IBankService
    .getAvailableQuickPayBankMap()
    .then(data => {
      res.send(data);
    })
    .catch(err => {
      res.send(err);
    });
});

app.listen(9090);

这个接口不需要参数http://localhost:9090/IBankService/getAvailableQuickPayBankMap

使用的版本： node-zookeeper-dubbo@2.2.1 dubbox 2.8.4 node 6.10.2

chua1989 commented 7 years ago

跟踪源码是因为encode.js中下面这段代码导致的，去掉即可

var ver = this._opt._dver || '2.5.3.6';
if(ver.startsWith('2.8')){
   body.write(-1);  //for dubbox 2.8.X
}

omnip620 commented 7 years ago

迷之诡异啊这段代码是之前有个朋友提交的目的是为了能够在2.8.4也就是dubbox使用你这边解决方案就是把这段去掉然后2.8.4就能通信成功？

chua1989 commented 7 years ago

是的

harryhan1989 commented 5 years ago

项目需求nodejs连接dubbo接口，找到node-zookeeper-dubbo很不错，但是复杂java对象却很难开发。网上也没搜到这方面的工具，索性自己写了个，经过多次调试试错，实现了普通json自动转换为dubbo可识别的java序列化对象，可支持java实体类内嵌实体类及内嵌List这种转化，简单高效，现在实现的比较简单，就是个工具类，有兴趣的同学欢迎包装为nodejs通用插件或eggjs插件：https://github.com/harryhan1989/json-to-java

harryhan1989 commented 5 years ago

你这个也是对象转换不对造成的，java dubbo识别不了

omnip620 / node-zookeeper-dubbo

Fail to decode request due to: RpcInvocation #50