利用SWIG将CTP封装成JAVA版本

重点参考景色大佬文章： 

 CTP JAVA API(JCTP)编译（利用Swig封装C++动态库）windows版_景色正好的博客-CSDN博客

 Swig转换C++接口中文乱码解决方案_景色正好的博客-CSDN博客

其中第二篇文章里，直接用文中给出的i修改方式会报错，原因在文章的评论区。

 

 

最后可用的 .i 文件全文如下：（将市场接口和行情接口打包到一个jar中）

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%module(directors="1") CTP4Java %include "various.i" %apply char **STRING_ARRAY { char *ppInstrumentID[] }     %{ #include "ThostFtdcMdApi.h" #include "ThostFtdcTraderApi.h"   #include <codecvt> #include <locale> #include <vector> #include <string> using namespace std; #ifdef _MSC_VER const static locale g_loc("zh-CN"); #else    const static locale g_loc("zh_CN.GB18030"); #endif %}      %typemap(out) char[ANY], char[] {     const std::string &gb2312($1);     std::vector<wchar_t> wstr(gb2312.size());     wchar_t* wstrEnd = nullptr;     const char* gbEnd = nullptr;     mbstate_t state = {};     int res = use_facet<codecvt<wchar_t, char, mbstate_t> >         (g_loc).in(state,             gb2312.data(), gb2312.data() + gb2312.size(), gbEnd,             wstr.data(), wstr.data() + wstr.size(), wstrEnd);        if (codecvt_base::ok == res)     {         wstring_convert<codecvt_utf8<wchar_t>> cutf8;         std::string result = cutf8.to_bytes(wstring(wstr.data(), wstrEnd));               $result=JCALL1(NewStringUTF,jenv,result.c_str());    }     else     {         std::string result;         $result=JCALL1(NewStringUTF,jenv,result.c_str());    } }   %feature("director") CThostFtdcMdSpi; %ignore THOST_FTDC_VTC_BankBankToFuture; %ignore THOST_FTDC_VTC_BankFutureToBank; %ignore THOST_FTDC_VTC_FutureBankToFuture; %ignore THOST_FTDC_VTC_FutureFutureToBank; %ignore THOST_FTDC_FTC_BankLaunchBankToBroker; %ignore THOST_FTDC_FTC_BrokerLaunchBankToBroker; %ignore THOST_FTDC_FTC_BankLaunchBrokerToBank; %ignore THOST_FTDC_FTC_BrokerLaunchBrokerToBank; %include "ThostFtdcUserApiDataType.h" %include "ThostFtdcUserApiStruct.h" %include "ThostFtdcMdApi.h" %feature("director") CThostFtdcTraderSpi; %include "ThostFtdcTraderApi.h"

　

various.i 在swig安装目录中找到（如： D:\swig\swigwin-4.0.2\Lib\java）

 

命令如下：

( swig命令生成 ctp4java_wrap.h 和 ctp4java_wrap.cpp  jar 命令打包成 ctp4java.jar )

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mkdir src   mkdir -p com/tugeler/ctp4java/v6_6_1   swig.exe -c++ -java -package com.tugeler.ctp4java.v6_6_1 -outdir src -o ctp4java_wrap.cpp ctp4java.i　    cd .\src\    javac *.java    cd ..    mv src/*.class .\com\tugeler\ctp4java\v6_6_1    jar.exe cf ctp4java.jar com

　　

 

 项目结构：

 

JAVA项目中设置环境变量  

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1	-Djava.library.path=$ProjectFileDir$/lib

 

然后代码中加载库

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static {     System.loadLibrary("product/thostmduserapi_se");     System.loadLibrary("product/thosttraderapi_se");     System.loadLibrary("ctp4java_wrap"); }

 

调用简单示例：

 

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public static void main(String[] args) {     CThostFtdcTraderApi api = CThostFtdcTraderApi.CreateFtdcTraderApi();     TraderSpiImpl spi = new TraderSpiImpl(api);     api.RegisterSpi(spi);     api.RegisterFront("tcp://111.222.333.444:56789");     api.SubscribePublicTopic(THOST_TE_RESUME_TYPE.THOST_TERT_RESTART);     api.SubscribePrivateTopic(THOST_TE_RESUME_TYPE.THOST_TERT_RESTART);     api.Init();     api.Join();     api.Release();     return; }

 

其中　SPI 是自己写的继承 CThostFtdcTraderSpi 后复写API中对应方法的响应。

 

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class TraderSpiImpl extends CThostFtdcTraderSpi {     final static String m_BrokerId = "xxxxx";     final static String m_UserId = "xxxxx";     final static String m_InvestorId = "xxxxx";     final static String m_AccountId = "xxxxx";     final static String m_appID = "xxxxx";     final static String m_appCode = "xxxxx";     final static String m_PassWord = "xxxxx";     private List<String> ListExchanges = new ArrayList<String>();     private List<String> ListProducts = new ArrayList<String>();     private List<String> ListInstruments = new ArrayList<String>();     TraderSpiImpl(CThostFtdcTraderApi traderapi) {         m_traderapi = traderapi;     }     @Override     public void OnFrontConnected() {         System.out.println("On Front Connected");         CThostFtdcReqAuthenticateField clientAuth = new CThostFtdcReqAuthenticateField();         clientAuth.setBrokerID(m_BrokerId);         clientAuth.setUserID(m_UserId);         clientAuth.setAppID(m_appID);         clientAuth.setAuthCode(m_appCode);         clientAuth.setUserProductInfo(m_appID);         int b = m_traderapi.ReqAuthenticate(clientAuth, 0);         System.out.println("b:" + b);         System.out.println("Send auth ok");     }       @Override     public void OnRspAuthenticate(CThostFtdcRspAuthenticateField field, CThostFtdcRspInfoField pRspInfo,                                int nRequestID, boolean bIsLast) {         if (pRspInfo != null && pRspInfo.getErrorID() != 0) {             System.out.printf("Auth ErrorID[%d] ErrMsg[%s]\n", pRspInfo.getErrorID(), pRspInfo.getErrorMsg());             return;         }         System.out.println("Auth success!!!");         CThostFtdcReqUserLoginField userLogin = new CThostFtdcReqUserLoginField();         userLogin.setBrokerID(m_BrokerId);         userLogin.setUserID(m_UserId);         userLogin.setPassword(m_PassWord);         userLogin.setUserProductInfo("JAVA_API");         int a = m_traderapi.ReqUserLogin(userLogin, 1);         System.out.println("a:" + a);         System.out.println("Send login ok");     }     @Override     public void OnRspUserLogin(CThostFtdcRspUserLoginField pRspUserLogin, CThostFtdcRspInfoField pRspInfo,                                int nRequestID, boolean bIsLast) {         if (pRspInfo != null && pRspInfo.getErrorID() != 0) {             System.out.printf("Login ErrorID[%d] ErrMsg[%s]\n", pRspInfo.getErrorID(), pRspInfo.getErrorMsg());             return;         }         System.out.println(pRspUserLogin);         System.out.println("Login success!!!");         CThostFtdcQryExchangeField pQryExchange = new CThostFtdcQryExchangeField();         int b = m_traderapi.ReqQryExchange(pQryExchange, 1);         System.out.println("b:" + b);     }     @Override     public void OnRspQryExchange(CThostFtdcExchangeField pExchange, CThostFtdcRspInfoField pRspInfo, int nRequestID,                                  boolean bIsLast) {         System.out.println(bIsLast + " : " +JSON.toJSONString(pExchange));         ListExchanges.add(pExchange.toString());         if (bIsLast) {             try {                 Thread.sleep(5000);             } catch (InterruptedException e) {                 e.printStackTrace();             }             CThostFtdcQryProductField pQryProduct = new CThostFtdcQryProductField();             int c = m_traderapi.ReqQryProduct(pQryProduct, 2);         }     }     @Override     public void OnRspQryProduct(CThostFtdcProductField pProduct, CThostFtdcRspInfoField pRspInfo, int nRequestID,                                 boolean bIsLast) {         System.out.println(bIsLast + " : " +JSON.toJSONString(pProduct));         ListProducts.add(pProduct.toString());         if(bIsLast) {             try {                 Thread.sleep(5000);             } catch (InterruptedException e) {                 e.printStackTrace();             }             CThostFtdcQryInstrumentField pQryInstrument = new CThostFtdcQryInstrumentField();             int d = m_traderapi.ReqQryInstrument(pQryInstrument, nRequestID);             System.out.println("d:"+d);         }     }     @Override     public void OnRspQryInstrument(CThostFtdcInstrumentField pInstrument, CThostFtdcRspInfoField pRspInfo,                                    int nRequestID, boolean bIsLast) {         System.out.println(bIsLast + " : " +JSON.toJSONString(pInstrument));         ListInstruments.add(pInstrument.toString());     }     private CThostFtdcTraderApi m_traderapi; }