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sofa-hessian-node

蚂蚁金服对 Hessian 序列化的定制版本

NPM version build status Test coverage David deps Known Vulnerabilities npm download

sofa-hessian-node 对应的 Java Hessian 版本是 v3.1.3。它对 hessian.js-1 模块做了进一步封装,通过预编译来提高性能。

安装

$ npm install sofa-hessian-node --save

示例

'use strict';

// classMap 是要序列化类的定义
const classMap = {
  'com.alipay.test.sub.TestObj2': {
    name: {
      type: 'java.lang.String',
    },
    transientField: {
      type: 'java.lang.String',
      isTransient: true,
    },
    finalField: {
      type: 'java.lang.String',
      defaultValue: 'xxx',
    },
    staticField: {
      type: 'java.lang.String',
      isStatic: true,
    },
  },
};

const encode = require('sofa-hessian-node').encode;

const buf = encode({
  $class: 'com.alipay.test.sub.TestObj2',
  $: { name: 'gxcsoccer' },
}, '2.0', classMap);

console.log(buf.toString('hex'));
// 4fac636f6d2e616c697061792e746573742e7375622e546573744f626a3292046e616d650a66696e616c4669656c646f9009677863736f6363657203787878

hessian 4 支持

const { v4 } = require('sofa-hessian-node');

const buf = v4.encode({
  $class: 'com.alipay.test.sub.TestObj2',
  $: { name: 'gxcsoccer' },
}, '2.0', classMap);

console.log(buf.toString('hex'));

性能数据

benchmark 看,相比于直接使用 hessian.js-1,sofa-hessian-node 性能有非常明显的提高(特别是针对复杂对象的场景)

  node version: v10.0.0, date: Wed Jun 27 2018 23:17:47 GMT+0800 (CST)
  Starting...
  4 tests completed.

  hessian old - 1.0 x  47,719 ops/sec ±2.57% (86 runs sampled)
  hessian new - 1.0 x 246,812 ops/sec ±2.76% (87 runs sampled)
  hessian old - 2.0 x  78,132 ops/sec ±2.49% (84 runs sampled)
  hessian new - 2.0 x 372,090 ops/sec ±2.99% (87 runs sampled)

如何贡献

请告知我们可以为你做些什么,不过在此之前,请检查一下是否有已经存在的Bug或者意见

如果你是一个代码贡献者,请参考代码贡献规范

开源协议

MIT

sofa-hessian-node's People

Contributors

chenfengjw163 avatar coolme200 avatar gxcsoccer avatar killagu avatar mansonchor avatar

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sofa-hessian-node's Issues

支持 hessian 4

背景

因为蚂蚁内部一直用的是 hessian 3,而且 3 和 4 不兼容,所以现在开源的版本只支持 3。但是在阿里集团和外部很多人使用的是 4,所以要予以支持

相关 issue

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