Question

我需要编写一个代码来调用'transferControl'例程并从收件箱中读取信息。我在java中调用'transferControl'方法的代码是什么？请帮助我新的java

public class WhatNext 
{
// 
// this method is invoked by the business logic to determine the
// NextStep and set it in the receipient's Inbox. There is a suggested
// InBox layout design in this code
//
public static void transferControl ( String requestId,
                                     String businessTransactionId,
                                     String transactionStepId,
                                     String selector,
                                     String requesterId)

{
InStorDB  theDB = new InStorDB();   // "connect" to the DB
    NextStep  next  = theDB.getNextStep(businessTransactionId,
                                        transactionStepId,
                                        selector);
    //
    // these 'columns' provide information on the next step to be taken
    //
    String nextTranId = next.nextBusinessTransactionId;
    String nextStepId = next.nextBusinessStepId;

    //
    // which is then used to obtain the next initiation environment
    //
    CurrentStep current = theDB.getCurrentStep(nextTranId,
                                               nextStepId);
    //
    //  then used to set up the InBox fields of the recepient 
    // "to be coded"


    // 
    // and stored in Inbox database
    // "to be coded"

    }                             
         }

Answer 1

由于Method transferControl是静态的，您可以调用下面的方法

WhatNext.transferControl(parameters);

Answer 2

简单地：

WhatNext.transferControl(all parameters);

Answer 3

有可能的方法，我提出两种方式：

由于transferControl方法是静态的，意味着此方法不在各种对象之间共享，因此JVM将视为类级别对象，因此您可以直接调用此方法，即

WhatNext.transferControl("requestId", "businessTransactionId",
        "transactionStepId", "selector", "requesterId"); // values are dummy.

在第二种方法中，您可以使用反射invoke方法（不推荐），即..

        Class[] paramTypes = new Class[5];
        paramTypes[0] = String.class;
        paramTypes[1] = String.class;
        paramTypes[2] = String.class;
        paramTypes[3] = String.class;
        paramTypes[4] = String.class;

        Class<?> c = Class.forName("com.ankush.WhatNext");
        Method methodCall = c.getDeclaredMethod("transferControl", paramTypes);
        Object[] obj = {"requestId", "businessTransactionId",
                "transactionStepId", "selector", "requesterId"};// values are dummy.
        methodCall.invoke(null, obj);

在java中调用方法

3 个答案: