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
列表
如果context中的对象中包含对象能不能用 obj.xxx 方式获取？
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);
}
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)
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？
@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。。。
@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);
}
@PaulingZhou
@baoxingjie
请教下：如何在内存动态的删除之前定义好的全局宏
比如String express = "Object a = 10 == 10 ; Object b = 2 == 3 ; return !a||!b"; return后面的 要怎么验证语法,用正则表达式吗?
import com.ql.util.express.test.OrderQuery;
//系统自动会import java.lang.,import java.util.;
query = new OrderQuery();//创建class实例,会根据classLoader信息，自动补全类路径
query.setCreateDate(new Date());//设置属性
query.buyer = "张三";//调用属性,默认会转化为setBuyer("张三")
result = bizOrderDAO.query(query);//调用bean对象的方法
System.out.println(result.getId());//静态方法
下载的jar为什么tesr路径
maven下载的包路径中没有test路径，按着这个写报错了
