/** * 商户 * * @var object */ protected object $merchant = ;

As an AI language model, I am unable to determine the value of the $merchant variable in this code snippet as it is not provided. However, based on the variable name and its data type, it is likely that it stores an object representing a merchant in a program or system.

相关问题

使用4gl语言利用CURSOR实现以下功能： 表结构： CREATE TABLE lmu_file（ lmu01 varchar2(20) NOT NULL，/*商品编号 */ lmu02 varchar2(30), /*商品名称 */ lmu03 varchar2(1), /*有效否 */ lmu04 varchar2(30), /*规格 */ lmu05 number(20,2) /*价格 */ ）； CREATE TABLE lmv_file（ lmv01 varchar2(16) NOT NULL， /*商户号 */ lmv02 varchar2(20) NOT NULL /*商品编号 */ ）； CREATE TABLE lrb_file ( lrb01 varchar2(16) NOT NULL, /*销售单号 */ lrb02 varchar2(20) NOT NULL, /*商品编号 */ lrb03 number(10,0), /*数量 */ lrb04 number(20,2), /*单价 */ lrb05 number(20,2) /*金额 */ ） DEFINE g_lrb DYNAMIC ARRAY OF RECORD lrb02 LIKE lrb_file.lrb02, lmu02 LIKE lmu_file.lmu02, lrb03 LIKE lrb_file.lrb03, lrb04 LIKE lrb_file.lrb04, lrb05 LIKE lrb_file.lrb05 END RECORD 以上3个表记录的分别是商品基本资料档，商户商品关系档以及销售单单身档，RECORD变量g_lrb记录销售单单身的值 一个商户号下有若干个商品，商户下的商品都存在于商品资料档中， 现在需要自动产生销售单单身档：将商户号为’S001’下的所有的商品insert 到lrb_file中，同时给g_lrb赋值（请先初始化将g_lrb清空），请用CURSOR的方式实现 （其中销售单号为’ 460-09090801’,数量lrb03和金额lrb05 default 为0 ） 步骤提示：先写sql 后prepare声明，再declare定义，通过依序抓取方式，逐笔抓取出来插表

以下是使用4GL语言利用CURSOR实现将商户号为'S001'下的所有商品插入到lrb_file表中的示例代码：

MAIN
    DEFINE lv_merchant VARCHAR(16)
    DEFINE lv_item VARCHAR(20)

    -- 设置商户号
    LET lv_merchant = 'S001'

    -- 清空g_lrb数组
    LET g_lrb = DYNAMIC ARRAY OF RECORD
        lrb02 LIKE lrb_file.lrb02,
        lmu02 LIKE lmu_file.lmu02,
        lrb03 LIKE lrb_file.lrb03,
        lrb04 LIKE lrb_file.lrb04,
        lrb05 LIKE lrb_file.lrb05
    END RECORD

    -- 声明游标
    DECLARE c_items CURSOR FOR
        SELECT lm.lmu02, lr.lrb03, lr.lrb04, lr.lrb05
        FROM lmv_file lv, lmu_file lm, lrb_file lr
        WHERE lv.lmv01 = lv_merchant
            AND lv.lmv02 = lm.lmu01
            AND lm.lmu01 = lr.lrb02

    -- 打开游标
    OPEN c_items

    -- 循环遍历游标结果集
    FETCH c_items INTO lv_item, g_lrb.lrb03, g_lrb.lrb04, g_lrb.lrb05
    WHILE SQLCA.SQLCODE = 0
        -- 设置其它字段的默认值
        LET g_lrb.lmu02 = lv_item
        LET g_lrb.lrb02 = '460-09090801'
        LET g_lrb.lrb05 = 0

        -- 插入记录到lrb_file表
        INSERT INTO lrb_file
        VALUES (g_lrb.lrb02, g_lrb.lmu02, g_lrb.lrb03, g_lrb.lrb04, g_lrb.lrb05)

        -- 继续获取下一条记录
        FETCH c_items INTO lv_item, g_lrb.lrb03, g_lrb.lrb04, g_lrb.lrb05
    END WHILE

    -- 关闭游标
    CLOSE c_items

    -- 输出结果
    DISPLAY "插入完成"

END MAIN

以上代码通过CURSOR循环遍历商户号为'S001'的商品，将每个商品的相关信息插入到lrb_file表中，并同时给g_lrb赋值。销售单号默认为'460-09090801'，数量和金额默认为0。请根据实际情况进行调整和修改。

package com.hmongsoft.merchant.Module.dataSource.onLine.V20230707; import android.os.AsyncTask; import com.hmongsoft.merchant.Base.Interface.ActionCallbackValue; import com.hmongsoft.merchant.Base.config.SysConfig; import java.io.IOException; import okhttp3.MultipartBody; import okhttp3.OkHttpClient; import okhttp3.Request; import okhttp3.RequestBody; /** * 校验商铺名称是否存在 */ public class JudgeMerchantIsExist { public JudgeMerchantIsExist(String merchantName, ActionCallbackValue<String,Boolean> actionCallback) { SignInTask signInTask=new SignInTask(merchantName,actionCallback); signInTask.execute(); } private static class SignInTask extends AsyncTask<String,Integer,Boolean>{ private String merchantName; private ActionCallbackValue<String,Boolean> actionCallback; private String requestResult; public SignInTask(String merchantName, ActionCallbackValue<String,Boolean> actionCallback) { this.merchantName =merchantName; this.actionCallback=actionCallback; } //异步前（UI） @Override protected void onPreExecute() { super.onPreExecute(); } //异步中（非UI） @Override protected Boolean doInBackground(String... strings) { OkHttpClient client = new OkHttpClient().newBuilder().build(); RequestBody body = new MultipartBody.Builder().setType(MultipartBody.FORM) .addFormDataPart("merchantName",merchantName) .build(); Request request = new Request.Builder() .url(SysConfig.MerchantPORT+"/MerchantController/judgeMerchantNameIsExist") .method("POST", body) .build(); try { requestResult = client.newCall(request).execute().body().string(); if (requestResult.equals("true")){ return true; }else { return false; } } catch (IOException e) { e.printStackTrace(); return false; } } //异步后（UI） @Override protected void onPostExecute(Boolean aBoolean) { super.onPostExecute(aBoolean); actionCallback.callback("result",aBoolean); } } } 这段代码的SignInTask已经被弃用，请帮换一个写法

package com.hmongsoft.merchant.Module.dataSource.onLine.V20230707;

import android.os.AsyncTask;

import com.hmongsoft.merchant.Base.Interface.ActionCallbackValue;
import com.hmongsoft.merchant.Base.config.SysConfig;

import java.io.IOException;

import okhttp3.MediaType;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;

/**
* 校验商铺名称是否存在
*/
public class JudgeMerchantIsExist {

public JudgeMerchantIsExist(String merchantName, ActionCallbackValue<String, Boolean> actionCallback) {
new SignInTask(merchantName, actionCallback).execute();
}

private static class SignInTask extends AsyncTask<Void, Void, Boolean> {

private String merchantName;
private ActionCallbackValue<String, Boolean> actionCallback;

public SignInTask(String merchantName, ActionCallbackValue<String, Boolean> actionCallback) {
this.merchantName = merchantName;
this.actionCallback = actionCallback;
}

@Override
protected Boolean doInBackground(Void... voids) {
OkHttpClient client = new OkHttpClient();

MediaType mediaType = MediaType.parse("application/json");
String json = "{\"merchantName\":\"" + merchantName + "\"}";
RequestBody body = RequestBody.create(json, mediaType);

Request request = new Request.Builder()
.url(SysConfig.MerchantPORT + "/MerchantController/judgeMerchantNameIsExist")
.post(body)
.build();

try {
String response = client.newCall(request).execute().body().string();
return response.equals("true");
} catch (IOException e) {
e.printStackTrace();
return false;
}
}

@Override
protected void onPostExecute(Boolean result) {
super.onPostExecute(result);
actionCallback.callback("result", result);
}
}
}