QLExpress/Lobby

baoxingjie

@baoxingjie

大家好，这个是QLExpress 的 gitter，有问题欢迎大家提问

Xin Wang

@lovepoem

@baoxingjie 合并一下那个pr，在首页显示这个logo

baoxingjie

@baoxingjie

具体怎么操作？

Garfield

@jackkiexu

@baoxingjie 哪些产品底层是用 QLExpress 的, 能否介绍一下

Star

@gsdgsd2991

这个框架在阿里是用在业务方面还是安全方面呢？

zhihuchenl

@zhihuchenl

请问一下，我用addMacro添加宏定义替换成一个函数，执行时报在Runner的操作符定义和自定义函数中都没有找到"sum"的定义，请教是什么问题

String sum = "function sum(int a,int b){\n" +
" return a+b;\n" +
"};\n";

    runner.addMacro("bbb", sum);
    runner.addFunctionOfServiceMethod("add", new BindObjectMethod(), "add",
            new Class[] { Integer.class, Integer.class }, null);

    DefaultContext<String, Object> context = new DefaultContext<String, Object>();

// context.put("a", 1);
// context.put("b", 2);

    String express = "add(1,2);bbb;sum(1,22)";
    Object r = runner.execute(express, context, null, true, false);
    System.out.println(r);

代码是这样子的

@baoxingjie

huishu

@linkqu

如何对例表求和？

列表

如果context中的对象中包含对象能不能用 obj.xxx 方式获取？

huishu

@linkqu

No people?

ningyu

@zhanlv

android平台怎么使用呢

huishu

@linkqu

引入包就可以用啊

Paul Chan

@rongmin

public static void main(String[] args) throws Exception {
ExpressRunner runner = new ExpressRunner();
runner.addOperatorWithAlias("和", "&&", "addOperatorWithAlias fail!");
runner.addOperatorWithAlias("大于", ">", "addOperatorWithAlias fail!");
runner.addOperatorWithAlias("减去", "-", "addOperatorWithAlias fail!");
DefaultContext<String, Object> context = new DefaultContext<String, Object>();
context.put("订单状态", "未审核");
context.put("当前系统时间", new Date().getTime());
context.put("订单最后修改时间", new Date().getTime());//2018-12-03 17:16:51
context.put("三个小时", 36060*1000);//毫秒
String express1 = "(订单状态 in (未审核，待业务认领单据) 和 (当前系统时间减去订单最后修改时间) 大于三个小时) 则 {return 1;} 否则 {return 0;}";
Object object = runner.execute(express1, context, null, true, true);
System.err.println(object);
}

Exception in thread "main" java.lang.Exception: 程序错误，不满足语法规范，没有匹配到合适的语法,最大匹配致[0:4]
at com.ql.util.express.match.QLPattern.findMatchStatement(QLPattern.java:21)
at com.ql.util.express.parse.ExpressParse.parse(ExpressParse.java:343)
at com.ql.util.express.parse.ExpressParse.parse(ExpressParse.java:310)
at com.ql.util.express.ExpressRunner.parseInstructionSet(ExpressRunner.java:656)
at com.ql.util.express.ExpressRunner.execute(ExpressRunner.java:561)
at com.ql.util.express.ExpressRunner.execute(ExpressRunner.java:538)
at com.koyoo.monitor.service.nc.esoc.order.NCEsocOrderServiceImpl.main(NCEsocOrderServiceImpl.java:148)

这个表达式报错如何排查？

Paul Chan

@rongmin

抱歉眼瞎找到问题了

Pauling

@PaulingZhou

@Test
public void testFunction2() throws Exception {
    ExpressRunner runner = new ExpressRunner();
    String[] args = {"123","456"};
    String exp = "String a = args[0];";
    DefaultContext<String, Object> context = new DefaultContext<String, Object>();
    context.put("args", args);
    Object result = runner.execute(exp,context,null,false,true);
    System.out.println(result);
}

这段代码跑不通。。。

1302岁的龙猫

@ORACLE128G

改成这样：\n

@Test
    public void testFunction2() throws Exception {
        ExpressRunner runner = new ExpressRunner();
        String[] args = {"123","456"};
        String exp = "a = args[0];";
        DefaultContext<String, Object> context = new DefaultContext<String, Object>();
        context.put("args", args);
        Object result = runner.execute(exp,context,null,false,true);
        System.out.println(result);
    }