brian 能够在 9.72 上获得一个工作示例，并且稍加修改它可能可以在 9.73 中运行。问题很简单：查看当前价格并与前一天的高点和低点进行比较。如果价格高于它打印出买入，如果低于历史前一交易日的低点它将打印出卖出。起初，由于我对 Java 的知识薄弱，我很挣扎，但布赖恩在他的回答中展示了如何使用当前和历史价格进行比较。非常初级，但很重要。
这是当前代码，应该采用当前价格并将其与前一交易日进行比较，如果高于高位则打印出买入，如果低于低位则打印出卖出。在 9.72 API 中，这段代码什么也没做，因为它没有正确连接数据类型。
package apidemo;
import java.io.IOException;
import java.util.Set;
import ib.client.TickType;
import ib.client.CommissionReport;
import ib.client.Contract;
import ib.client.ContractDetails;
import ib.client.DeltaNeutralContract;
import ib.client.EClientSocket;
import ib.client.EJavaSignal;
import ib.client.EReader;
import ib.client.EWrapper;
import ib.client.Execution;
import ib.client.Order;
import ib.client.OrderState;
import ib.client.SoftDollarTier;
import ib.client.TagValue;
import java.util.Vector;
import com.ib.client.*;
import com.ib.contracts.StkContract;
import java.time.LocalDate;
import java.time.format.DateTimeFormatter;
import java.util.Set;
public class xxx implements EWrapper {
EJavaSignal m_signal = new EJavaSignal();
EClientSocket m_s = new EClientSocket(this, m_signal);
// Keep track of the next ID
private int nextOrderID = 0;
// The IB API Client Socket object
private EClientSocket client = null;
private double high = Double.MAX_VALUE;
private double low = -Double.MAX_VALUE;
public static void main(String[] args) {
new xxx().run();
}
private void run() {
m_s.eConnect("localhost", 7497, 0);
final EReader reader = new EReader(m_s, m_signal);
reader.start();
new Thread() {
public void run() {
while (m_s.isConnected()) {
m_signal.waitForSignal();
try {
javax.swing.SwingUtilities
.invokeAndWait(new Runnable() {
@Override
public void run() {
try {
reader.processMsgs();
} catch (IOException e) {
error(e);
}
}
});
} catch (Exception e) {
error(e);
}
}
}
}.start();
Contract contract = new Contract ();
Order order = new Order();
m_s.reqMarketDataType(3);
//contract.m_localSymbol = "ESM7";
}
@Override public void nextValidId(int orderId) {
System.out.println("id "+orderId);
nextOrderID = orderId;
Contract c = new Contract ();
//contract.m_localSymbol = "ESM7";
c.m_symbol = "EUR";
c.m_exchange = "IDEALPRO";
c.m_secType = "CASH";
c.m_currency = "USD";
m_s.reqHistoricalData(1, c,
LocalDate.now().format(DateTimeFormatter.BASIC_ISO_DATE)+ " 16:00:00",
"2 D", "1 day", "MIDPOINT", 1, 1, null);
m_s.reqMktData(1, c, "", false, null);
}
public void historicalData(int reqId, String date, double open, double high, double low, double close, int volume, int count, double WAP, boolean hasGaps) {
System.out.println("date xxx"+date);
this.high = high;
this.low = low;
System.out.println(high);
System.out.println(low);
System.out.println("xxx");
}
public void tickPrice(int orderId, int field, double price,
int canAutoExecute)
{
System.out.println(high);
System.out.println(low);
System.out.println("idx: "+orderId + " " + TickType.getField(field) + " pricex: "+price);
if (field == TickType.LAST.index()){
if (price > high) {
System.out.println("buy");
}
if (price < low){
System.out.println("sell");
}
}
}
@Override public void connectionClosed() {
}
}
此代码当前已输出如下：
id 1836254
date xxx20170328
1.08727
1.079905
xxx
date xxx20170329
1.08267
1.073995
xxx
date xxxfinished-20170327 16:00:00-20170329 16:00:00
-1.0
-1.0
xxx
-1.0
-1.0
idx: 1 bidPrice pricex: 1.07658
-1.0
-1.0
idx: 1 askPrice pricex: 1.07659
-1.0
-1.0
请注意每日的高点和低点显示了两个会话，这真是太神奇了。但是，当尝试使用 tickprice 中的那些高点和低点时，它不会被记住并返回 -1。