我正在尝试从 txt 文件中收集 JSON。但我下面的代码似乎一直给我“nullPointerException”。
File f = new File(tempDir+File.separator+'jsonObject.txt')
if (f){
log.error " file exists $f"
FileReader f2 = new FileReader(f);
log.error " file data- $f2"
if (f2 == null) {
//do something
} else {
JsonSlurper jsonParser = new JsonSlurper();
game = jsonParser.parse(new FileReader(f));
}
}
找到解决方案
读取 json txt 文件:
File f = new File(tempDir+File.separator+'jsonObject.txt')
def slurper = new JsonSlurper()
def jsonText = f.getText()
json = slurper.parseText( jsonText )
将json写入文件:
File g = new File(tempDir+File.separator+'jsonObject.txt')
g.createNewFile()
def json = new JsonBuilder()
json {
"result" result
}
g.setText(json.toString())