GSON的java自定义打印格式

Question

我和GSON在印刷方面有点问题。GSON在打印方面有两种选择

1. 漂亮的印刷品
2. 紧凑印刷

我打算使用一种经过修改的漂亮打印形式，尽管documentation说JsonPrintFormatter是用于修改输出格式的类。我在GSON存储库中找不到那个类

你知道为什么会这样吗？或者我可以修改GSON打印？ 除此之外，任何用于修改Java语言中JSON的间距或格式的库都会很有帮助

漂亮的印花：

    {
  "classname": "something",
  "type": "object",
  "version": 1,
  "properties": [
    {
      "propertyname": "something1",
      "type": "String",
      "length": 255
    },
    {
      "propertyname": "something2",
      "type": "Date",
      "length": 10
    }
  ]
}

紧凑打印：

{"classname":"something","type":"object","version":1,"properties":[{"propertyname":"something1","type":"String","length":255},{"propertyname":"something2","type":"Date","length":10}]}

我的印刷风格：

{
  "classname": "something",
  "type": "object",
  "version": 1,
  "properties": [
    {"propertyname": "something1","type": "String","length": 255},
    {"propertyname": "something2","type": "Date","length": 10}
  ]
}

Answer 1

嗯，目前这只是一项正在进行的工作，但对于只有一个数组的字符串来说，这应该可以做到。将研究如何使其更稳定，能够处理更复杂的结构

  private static String reformat(String og){
    String reformattable = og;
    String[] parts = reformattable.split("\\[",2);
    String arrayPart = parts[1];
    String arrayOnly = arrayPart.split("]",2)[0];
    reformattable = arrayOnly.replaceAll("\\{\n","{");
    reformattable = reformattable.replaceAll("\",\n", "\\\",");
    reformattable = reformattable.replaceAll(" +"," ");
    reformattable = reformattable.replaceAll("\\{ ","   {");
    reformattable = reformattable.replaceAll("\n }","}");

    return og.replace(arrayOnly,reformattable);
} 

结果应该是这样的（至少对于我的简单类）：

{
 "classname": "test",
 "properties": [
   {"propertyname": "1", "length": 1},
   {"propertyname": "1", "length": 1}
 ]
}