FISCO BCOS的Java SDK Demo介绍
- Java SDK Demo是FISCO BCOS团队基于Java SDK的基准测试集合，能够对FISCO BCOS节点进行压力测试。Java SDK Demo提供有合约编译功能，能够将Solidity合约文件转换成Java合约文件，此外还提供了针对转账合约、CRUD合约以及AMOP功能的压力测试示例程序
环境准备
- Java SDK Demo中的测试程序能够在部署有JDK 1.8 ~ JDK 14的环境中运行，执行测试程序前请先确保已安装所需版本的JDK。以在Ubuntu系统中安装OpenJDK 11为例：
# 安装open JDK 11
sudo apt install openjdk-11-jdk
# 验证Java版本
java --version
# 输出以下内容：
# openjdk 11.0.10 2021-01-19
# OpenJDK Runtime Environment (build 11.0.10+9-Ubuntu-0ubuntu1.20.04)
# OpenJDK 64-Bit Server VM (build 11.0.10+9-Ubuntu-0ubuntu1.20.04, mixed mode, sharing)
编译源码
# 下载源码
git clone https://github.com/FISCO-BCOS/java-sdk-demo
cd java-sdk-demo
# 切换到2.0版本
git checkout main-2.0
# 编译源码
./gradlew build
#当网络无法访问GitHub时，请从https://gitee.com/FISCO-BCOS/java-sdk-demo处的main-2.0分支下载源码。
配置Demo
- 使用Java SDK Demo之前，需要进行证书拷贝以及区块链节点端口的配置，我的区块链环境是按照FISCO BCOS开发文档配置的本地四节点联盟链，以下操作以此环境为基础
cd dist
# 拷贝证书(假设SDK证书位于~/fisco/nodes/127.0.0.1/sdk目录，请根据实际情况更改路径)
cp -r ~/fisco/nodes/127.0.0.1/sdk/* conf
# 拷贝配置文件
# 注:
# 默认搭建的FISCO BCOS区块链系统Channel端口是20200，若修改了该端口，请同步修改config.toml中的[network.peers]配置选项
cp conf/config-example.toml conf/config.toml
- 由于我的区块链环境具有四个节点，所以应该修改java-sdk-demo/dist/conf/config.toml下的network.peers配置
执行压力测试程序
- Java SDK Demo提供了一系列压测程序，包括串行转账合约压测、并行转账合约压测、AMOP压测等，具体使用方法如下：
# 进入dist目录
cd dist
# 将需要转换为java代码的sol文件拷贝到dist/contracts/solidity路径下
# 转换sol, 其中${packageName}是生成的java代码包路径
# 生成的java代码位于 /dist/contracts/sdk/java目录下
java -cp "apps/*:lib/*:conf/" org.fisco.bcos.sdk.demo.codegen.DemoSolcToJava ${packageName}
# 压测串行转账合约:
# count: 压测的交易总量
# tps: 压测QPS
# groupId: 压测的群组ID
java -cp 'conf/:lib/*:apps/*' org.fisco.bcos.sdk.demo.perf.PerformanceOk [count] [tps] [groupId]
# 压测并行转账合约
# --------------------------
# 基于Solidity并行合约parallelok添加账户:
# groupID: 压测的群组ID
# count: 压测的交易总量
# tps: 压测QPS
# file: 保存生成账户的文件名
java -cp 'conf/:lib/*:apps/*' org.fisco.bcos.sdk.demo.perf.ParallelOkPerf [parallelok] [groupID] [add] [count] [tps] [file]
# 基于Precompiled并行合约precompiled添加账户
# (参数含义同上)
java -cp 'conf/:lib/*:apps/*' org.fisco.bcos.sdk.demo.perf.ParallelOkPerf [precompiled] [groupID] [add] [count] [tps] [file]
# --------------------------
# 基于Solidity并行合约parallelok发起转账交易压测
# groupID: 压测的群组ID
# count: 压测的交易总量
# tps: 压测的QPS
# file: 转账用户文件
java -cp 'conf/:lib/*:apps/*' org.fisco.bcos.sdk.demo.perf.ParallelOkPerf [parallelok] [groupID] [transfer] [count] [tps] [file]
# 基于Precompiled并行合约Precompiled发起转账压测
java -cp 'conf/:lib/*:apps/*' org.fisco.bcos.sdk.demo.perf.ParallelOkPerf [precompiled] [groupID] [transfer] [count] [tps] [file]
# CRUD合约压测
# 压测CRUD insert
# count: 压测的交易总量
# tps: 压测QPS
# groupId: 压测群组
java -cp 'conf/:lib/*:apps/*' org.fisco.bcos.sdk.demo.perf.PerformanceTable [insert] [count] [tps] [groupId]
# 压测CRUD update
# (参数解释同上)
java -cp 'conf/:lib/*:apps/*' org.fisco.bcos.sdk.demo.perf.PerformanceTable [update] [count] [tps] [groupId]
# 压测CRUD remove
# (参数解释同上)
java -cp 'conf/:lib/*:apps/*' org.fisco.bcos.sdk.demo.perf.PerformanceTable [remove] [count] [tps] [groupId]
# 压测CRUD query
# (参数解释同上)
java -cp 'conf/:lib/*:apps/*' org.fisco.bcos.sdk.demo.perf.PerformanceTable [query] [count] [tps] [groupId]
压测自定义合约
- 在现实生产中，我们需要对自己定义的智能合约进行压力测试，因此需要将自己编写的智能合约加入Java SDK Demo中，同时还要编写相应的压力测试程序，来测试合约中指定的功能。
- 压测自定义合约的开发均在Java SDK Demo中进行，我们需要开发三个文件，分别是：
- 待压测的智能合约：HelloWorld.sol
- 带压测的智能合约所编译出的Java类：HelloWorld.java(可以使用FISCO BCOS控制台的脚本进行智能合约到Java代码的自动转换，具体操作方式见FISCO BCOS系统开发文档中Java SDK的引入)
- 压力测试程序：PerformanceHelloWorld.java
项目的存放路径
-
以上三个文件的存放路径如下
java-sdk-demo/src/main/java/org/fisco/bcos/sdk/demo ├── contract │ ├── HelloWorld.java │ └── sol │ └── HelloWorld.sol └── perf └── PerformanceHelloWorld.java
以HelloWorld合约为例，开发压测程序
-
压力测试程序的写法可以根据Java SDK Demo中提供的示例程序进行修改，这里展示基于HelloWorld合约写出的压力测试程序，测试的是HelloWorld合约中的set方法
-
HelloWorld.sol
pragma solidity>=0.4.24 <0.6.11; contract HelloWorld { string name; constructor() public { name = "Hello, World!"; } function get() public view returns (string memory) { return name; } function set(string memory n) public { name = n; } } -
HelloWorld.java(使用脚本根据HelloWorld.sol自动生成，
生成完毕后需要修改文件第一行为package org.fisco.bcos.sdk.demo.contract，这里不做展示) -
PerformanceHelloWorld.java
/** * Copyright 2014-2020 [fisco-dev] * * <p>Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file * except in compliance with the License. You may obtain a copy of the License at * * <p>http://www.apache.org/licenses/LICENSE-2.0 * * <p>Unless required by applicable law or agreed to in writing, software distributed under the * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either * express or implied. See the License for the specific language governing permissions and * limitations under the License. */ package org.fisco.bcos.sdk.demo.perf; import com.google.common.util.concurrent.RateLimiter; import java.math.BigInteger; import java.net.URL; import java.util.concurrent.atomic.AtomicInteger; import org.fisco.bcos.sdk.BcosSDK; import org.fisco.bcos.sdk.BcosSDKException; import org.fisco.bcos.sdk.client.Client; import org.fisco.bcos.sdk.demo.contract.HelloWorld; import org.fisco.bcos.sdk.demo.perf.callback.PerformanceCallback; import org.fisco.bcos.sdk.demo.perf.collector.PerformanceCollector; import org.fisco.bcos.sdk.model.ConstantConfig; import org.fisco.bcos.sdk.model.TransactionReceipt; import org.fisco.bcos.sdk.transaction.model.exception.ContractException; import org.fisco.bcos.sdk.utils.ThreadPoolService; import org.slf4j.Logger; import org.slf4j.LoggerFactory; public class PerformanceHelloWorld { private static Logger logger = LoggerFactory.getLogger(PerformanceHelloWorld.class); private static AtomicInteger sendedTransactions = new AtomicInteger(0); private static void Usage() { System.out.println(" Usage:"); System.out.println( " \t java -cp 'conf/:lib/*:apps/*' org.fisco.bcos.sdk.demo.perf.PerformanceHelloWorld [count] [tps] [groupId]."); } public static void main(String[] args) { try { String configFileName = ConstantConfig.CONFIG_FILE_NAME; URL configUrl = PerformanceOk.class.getClassLoader().getResource(configFileName); if (configUrl == null) { System.out.println("The configFile " + configFileName + " doesn't exist!"); return; } if (args.length < 3) { Usage(); return; } Integer count = Integer.valueOf(args[0]); Integer qps = Integer.valueOf(args[1]); Integer groupId = Integer.valueOf(args[2]); System.out.println( "====== PerformanceOk trans, count: " + count + ", qps:" + qps + ", groupId: " + groupId); String configFile = configUrl.getPath(); BcosSDK sdk = BcosSDK.build(configFile); // build the client Client client = sdk.getClient(groupId); // deploy the HelloWorld System.out.println("====== Deploy Ok ====== "); HelloWorld helloWorld = HelloWorld.deploy(client, client.getCryptoSuite().getCryptoKeyPair()); System.out.println( "====== Deploy HelloWorld succ, address: " + helloWorld.getContractAddress() + " ====== "); PerformanceCollector collector = new PerformanceCollector(); collector.setTotal(count); RateLimiter limiter = RateLimiter.create(qps); Integer area = count / 10; final Integer total = count; System.out.println("====== PerformanceOk trans start ======"); ThreadPoolService threadPoolService = new ThreadPoolService( "PerformanceHelloWorld", sdk.getConfig().getThreadPoolConfig().getMaxBlockingQueueSize()); for (Integer i = 0; i < count; ++i) { limiter.acquire(); threadPoolService .getThreadPool() .execute( new Runnable() { @Override public void run() { PerformanceCallback callback = new PerformanceCallback(); callback.setTimeout(0); callback.setCollector(collector); try { helloWorld.set("Hello, fisco", callback); } catch (Exception e) { TransactionReceipt receipt = new TransactionReceipt(); receipt.setStatus("-1"); callback.onResponse(receipt); logger.info(e.getMessage()); } int current = sendedTransactions.incrementAndGet(); if (current >= area && ((current % area) == 0)) { System.out.println( "Already sended: " + current + "/" + total + " transactions"); } } }); } // wait to collect all the receipts while (!collector.getReceived().equals(count)) { Thread.sleep(1000); } threadPoolService.stop(); System.exit(0); } catch (BcosSDKException | ContractException | InterruptedException e) { System.out.println( "====== PerformanceOk test failed, error message: " + e.getMessage()); System.exit(0); } } }
-
HelloWorld合约的压力测试
-
将上述三个文件放入对应的目录后，执行以下操作对HelloWorld合约进行压力测试（如果提示找不到主类，则可以重新编译一下项目再进入dist目录进行执行）
cd /java-sdk-demo/dist #200000代表总测试量为200000 10000代表每秒向区块链系统发送10000次请求 1代表区块链系统的groupId java -cp 'conf/:lib/*:apps/*' org.fisco.bcos.sdk.demo.perf.PerformanceHelloWorld 200000 10000 1 -
压力测试结果如下，可以看到本机的四节点区块链系统对HelloWorld合约里set方法的TPS为1797.67文章来源：https://www.toymoban.com/news/detail-795999.html
文章来源地址https://www.toymoban.com/news/detail-795999.html
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