我正在尝试从Python向Java代码传递可变参数。
Java代码: LogDebugCmd.java
public class LogDebugCmd implements Command {
private Class clazz;
private String format;
private Object[] args;
public LogDebugCmd() {}
public void setLog(String format, Object... args) {
this.format = format;
this.args = args.clone();
clazz = getClass();
}
@Override
public void execute() {
VLog.getLog(clazz).debug(format, args);
}
CommandEntryPoint.java
public class CommandEntryPoint {
private LogDebugCmd logDebugCmd;
public CommandEntryPoint() {
logDebugCmd = new LogDebugCmd();
public LogDebugCmd getLogDebugCmd(String str, Object... args) {
setLog(str, args);
return logDebugCmd;
}
public static void main(String args[]) {
GatewayServer gatewayServer = new GatewayServer(new CommandEntryPoint());
gatewayServer.start();
System.out.println("Gateway Server Started");
}
Python 代码 test.py:
from py4j.java_gateway import JavaGateway
gateway = JavaGateway()
logDebugCmd = gateway.entry_point.getLogDebugCmd("Step 01 - Test initiated.")
logDebugCmd..execute()
错误:
Traceback (most recent call last):
File "C:/Python27/Lib/site-packages/py4j-0.10.3-py2.7.egg/py4j/sampleTLStest.py", line 4, in <module>
logDebugCmd = gateway.entry_point.getLogDebugCmd("Step 01 - Test initiated.")
File "C:\Python27\lib\site-packages\py4j-0.10.3-py2.7.egg\py4j\java_gateway.py", line 1133, in __call__
answer, self.gateway_client, self.target_id, self.name)
File "C:\Python27\lib\site-packages\py4j-0.10.3-py2.7.egg\py4j\protocol.py", line 323, in get_return_value
format(target_id, ".", name, value))
***Py4JError: An error occurred while calling t.getLogDebugCmd.
Trace:
py4j.Py4JException: Method getLogDebugCmd([class java.lang.String]) does not exist at py4j.reflection.ReflectionEngine.getMethod(ReflectionEngine.java:318)
at py4j.reflection.ReflectionEngine.getMethod(ReflectionEngine.java:326)
at py4j.Gateway.invoke(Gateway.java:272)
at py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:132)
at py4j.commands.CallCommand.execute(CallCommand.java:79)
at py4j.GatewayConnection.run(GatewayConnection.java:214)
at java.lang.Thread.run(Thread.java:745)***
有没有一种方式可以将可变参数传递给Java?我正在尝试将String作为第二个参数传递给getLogDebugCmd(),但也出现错误。
object_array [0] = None logDebugCmd = gateway.entry_point.getLogDebugCmd(“Step 01 - Test initiated。”,object_array)
- Pooja