FlowUtil.java
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package com.java110.utils.util;
import java.util.Map;
public class FlowUtil {
/**
* el表达式判断
*
* @param expression
* @param vars
* @return
*/
public static boolean isCondition(String expression, Map<String, Object> vars) {
if (expression == null || expression == "") {
return false;
}
//分割表达式
String[] exprArr = expression.split("[{}$&]");
for (String expr : exprArr) {
//是否包含键message
if (expr.contains("flag")) {
if (!vars.containsKey("flag")) {
continue;
}
if (expr.contains("==")) {
String[] primes = expr.split("==");
String valExpr = primes[1].trim();
if (valExpr.startsWith("'")) {
valExpr = valExpr.substring(1);
}
if (valExpr.endsWith("'")) {
valExpr = valExpr.substring(0, valExpr.length() - 1);
}
if (primes.length == 2 && valExpr.equals(vars.get("flag"))) {
return true;
}
}
}
}
return false;
}
}