Groovy String类型null和empty("")判断 public static void main(String[] args) { def a = "" def b = null if (a?.trim()){ //a为null/"" a?.trim()表达式为false println("not empty or null") } else { def c = a?.trim() println("empty or null") } }...
/*** @param code 传入的动态Groovy代码* @param extraPackage 额外import的类*/privatevoidinitGroovyTransformer(Stringcode,List<String>extraPackage){GroovyClassLoaderloader=newGroovyClassLoader(GroovyTransformer.class.getClassLoader());StringgroovyRule=getGroovyRule(code,extraPackage);ClassgroovyClass;try{groo...
defcheck(String name){// name non-null and non-empty according to Groovy Truthassertname// safe navigation + Groovy Truth to checkassertname?.size()>3} 18、三目运算符 三目运算符通常用来给定默认值,我们经常这样写: def result=name!=null?name:"Unknown" 多亏了Groovy的真值,空值检查可以简化为'...
println("匹配到的进程信息:") matches.each { println(it) } }else{ println("没有匹配到任何进程信息。") } }else{ println("Log file does not exist or is empty.") }//构建 JSON 数据def jsonContent = "执行结果:\n${matches.join("\n")}"def jsonInputString=JsonOutput.toJson([ msgtype...
def isNotEmpty(content) { return content != null && content.toString().trim().length() > 0 } static String changeStyle(String str, boolean toCamel) { if (!str || str.size() <= 1) return str if (toCamel) { String r = str.toLowerCase().split('_').collect { cc -> Case....
@RecordTypeclassMessage{String from String to String body} 之后@RecordType被改为元注解,并扩展为其组成子注解,如@TupleConstructor、@POJO、@RecordBase等。在某种意义上,这是一个经常被忽略的实现细节。但是,如果您希望自定义或配置记录实现,我们可能希望返回@RecordType样式或使用一个组成子注释来扩充记录类。
String express = "a>0" ; GroovyShell shell = new GroovyShell(); Script script = shell.parse(express); Binding binging = new Binding(); bind.setVariable("a", 1); script.setBinding(binding); System.out.println(script.run());
.-1] } def isNotEmpty(content) { return content != null && content.toString().trim().length() > 0 } static String changeStyle(String str, boolean toCamel) { if (!str || str.size() <= 1) return str if (toCamel) { String r = str.toLowerCase().split('_').collect { cc ...
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