javascript-将字符串转换为json数组

我使用s3select获取选择性数据并在前端显示它们。 我将字节数组转换为缓冲区，然后转换为字符串，如下所示

let dataString=Buffer.concat（records.toString（'utf8'）

我得到的结果如下

 {"id":"1","obj1":"191.25","obj2":"11.81","obj3":"3.44","obj4":"15.62"}
 {"id":"2","obj1":"642.00","obj2":"4.33","obj3":"0.00","obj4":"11.33"}
 {"id":"3","obj1":"153.76","obj2":"94.77","obj3":"16.80","obj4":"29.79"}
 {"id":"4","obj1":"61.71","obj2":"0.43","obj3":"0.00","obj4":"8.14"}
 {"id":"5","obj1":"194.33","obj2":"108.89","obj3":"14.13","obj4":"168.60"}
 {"id":"6","obj1":"204.31","obj2":"137.41","obj3":"34.76","obj4":"193.16"}
 {"id":"7","obj1":"199.53","obj2":"34.53","obj3":"16.29","obj4":"26.56"}
 {"id":"8","obj1":"77.33","obj2":"5.00","obj3":"12.50","obj4":"0.00"}
 {"id":"9","obj1":"128.54","obj2":"101.60","obj3":"15.76","obj4":"46.23"}
 {"id":"10","obj1":"107.00","obj2":"116.67","obj3":"34.42","obj4":"8.75"}
 {"id":"12","obj1":"206.05","obj2":"155.03","obj3":"36.96","obj4":"148.99"}
 {"id":"13","obj1":"133.93","obj2":"142.79","obj3":"39.91","obj4":"98.30"}
  

let dataArray = dataString.split('\n');
//remove white spaces and commas etc
dataArray = dataArray.filter(d=> d.length >2);
//change string to json
dataArray = dataArray.map(d=> JSON.parse(d));

[{"id":"1","obj1":"191.25","obj2":"11.81","obj3":"3.44","obj4":"15.62"},
 {"id":"2","obj1":"642.00","obj2":"4.33","obj3":"0.00","obj4":"11.33"},
 {"id":"3","obj1":"153.76","obj2":"94.77","obj3":"16.80","obj4":"29.79"},
 {"id":"4","obj1":"61.71","obj2":"0.43","obj3":"0.00","obj4":"8.14"},
 {"id":"5","obj1":"194.33","obj2":"108.89","obj3":"14.13","obj4":"168.60"},
 {"id":"6","obj1":"204.31","obj2":"137.41","obj3":"34.76","obj4":"193.16"},
 {"id":"7","obj1":"199.53","obj2":"34.53","obj3":"16.29","obj4":"26.56"},
 {"id":"8","obj1":"77.33","obj2":"5.00","obj3":"12.50","obj4":"0.00"},
 {"id":"9","obj1":"128.54","obj2":"101.60","obj3":"15.76","obj4":"46.23"},
 {"id":"10","obj1":"107.00","obj2":"116.67","obj3":"34.42","obj4":"8.75"},
 {"id":"12","obj1":"206.05","obj2":"155.03","obj3":"36.96","obj4":"148.99"},
 {"id":"13","obj1":"133.93","obj2":"142.79","obj3":"39.91","obj4":"98.30"}
]

现在我想把它们转换成json数组，我得到了如下的解决方案

 {"id":"1","obj1":"191.25","obj2":"11.81","obj3":"3.44","obj4":"15.62"}
 {"id":"2","obj1":"642.00","obj2":"4.33","obj3":"0.00","obj4":"11.33"}
 {"id":"3","obj1":"153.76","obj2":"94.77","obj3":"16.80","obj4":"29.79"}
 {"id":"4","obj1":"61.71","obj2":"0.43","obj3":"0.00","obj4":"8.14"}
 {"id":"5","obj1":"194.33","obj2":"108.89","obj3":"14.13","obj4":"168.60"}
 {"id":"6","obj1":"204.31","obj2":"137.41","obj3":"34.76","obj4":"193.16"}
 {"id":"7","obj1":"199.53","obj2":"34.53","obj3":"16.29","obj4":"26.56"}
 {"id":"8","obj1":"77.33","obj2":"5.00","obj3":"12.50","obj4":"0.00"}
 {"id":"9","obj1":"128.54","obj2":"101.60","obj3":"15.76","obj4":"46.23"}
 {"id":"10","obj1":"107.00","obj2":"116.67","obj3":"34.42","obj4":"8.75"}
 {"id":"12","obj1":"206.05","obj2":"155.03","obj3":"36.96","obj4":"148.99"}
 {"id":"13","obj1":"133.93","obj2":"142.79","obj3":"39.91","obj4":"98.30"}
  

let dataArray = dataString.split('\n');
//remove white spaces and commas etc
dataArray = dataArray.filter(d=> d.length >2);
//change string to json
dataArray = dataArray.map(d=> JSON.parse(d));

[{"id":"1","obj1":"191.25","obj2":"11.81","obj3":"3.44","obj4":"15.62"},
 {"id":"2","obj1":"642.00","obj2":"4.33","obj3":"0.00","obj4":"11.33"},
 {"id":"3","obj1":"153.76","obj2":"94.77","obj3":"16.80","obj4":"29.79"},
 {"id":"4","obj1":"61.71","obj2":"0.43","obj3":"0.00","obj4":"8.14"},
 {"id":"5","obj1":"194.33","obj2":"108.89","obj3":"14.13","obj4":"168.60"},
 {"id":"6","obj1":"204.31","obj2":"137.41","obj3":"34.76","obj4":"193.16"},
 {"id":"7","obj1":"199.53","obj2":"34.53","obj3":"16.29","obj4":"26.56"},
 {"id":"8","obj1":"77.33","obj2":"5.00","obj3":"12.50","obj4":"0.00"},
 {"id":"9","obj1":"128.54","obj2":"101.60","obj3":"15.76","obj4":"46.23"},
 {"id":"10","obj1":"107.00","obj2":"116.67","obj3":"34.42","obj4":"8.75"},
 {"id":"12","obj1":"206.05","obj2":"155.03","obj3":"36.96","obj4":"148.99"},
 {"id":"13","obj1":"133.93","obj2":"142.79","obj3":"39.91","obj4":"98.30"}
]

现在的问题是，我已经用新行拆分了它们，如果json被压缩，或者数据本身可以有新行，那么它们将无法工作

处理这种情况的最佳方法是什么。我希望输出如下

 {"id":"1","obj1":"191.25","obj2":"11.81","obj3":"3.44","obj4":"15.62"}
 {"id":"2","obj1":"642.00","obj2":"4.33","obj3":"0.00","obj4":"11.33"}
 {"id":"3","obj1":"153.76","obj2":"94.77","obj3":"16.80","obj4":"29.79"}
 {"id":"4","obj1":"61.71","obj2":"0.43","obj3":"0.00","obj4":"8.14"}
 {"id":"5","obj1":"194.33","obj2":"108.89","obj3":"14.13","obj4":"168.60"}
 {"id":"6","obj1":"204.31","obj2":"137.41","obj3":"34.76","obj4":"193.16"}
 {"id":"7","obj1":"199.53","obj2":"34.53","obj3":"16.29","obj4":"26.56"}
 {"id":"8","obj1":"77.33","obj2":"5.00","obj3":"12.50","obj4":"0.00"}
 {"id":"9","obj1":"128.54","obj2":"101.60","obj3":"15.76","obj4":"46.23"}
 {"id":"10","obj1":"107.00","obj2":"116.67","obj3":"34.42","obj4":"8.75"}
 {"id":"12","obj1":"206.05","obj2":"155.03","obj3":"36.96","obj4":"148.99"}
 {"id":"13","obj1":"133.93","obj2":"142.79","obj3":"39.91","obj4":"98.30"}
  

let dataArray = dataString.split('\n');
//remove white spaces and commas etc
dataArray = dataArray.filter(d=> d.length >2);
//change string to json
dataArray = dataArray.map(d=> JSON.parse(d));

[{"id":"1","obj1":"191.25","obj2":"11.81","obj3":"3.44","obj4":"15.62"},
 {"id":"2","obj1":"642.00","obj2":"4.33","obj3":"0.00","obj4":"11.33"},
 {"id":"3","obj1":"153.76","obj2":"94.77","obj3":"16.80","obj4":"29.79"},
 {"id":"4","obj1":"61.71","obj2":"0.43","obj3":"0.00","obj4":"8.14"},
 {"id":"5","obj1":"194.33","obj2":"108.89","obj3":"14.13","obj4":"168.60"},
 {"id":"6","obj1":"204.31","obj2":"137.41","obj3":"34.76","obj4":"193.16"},
 {"id":"7","obj1":"199.53","obj2":"34.53","obj3":"16.29","obj4":"26.56"},
 {"id":"8","obj1":"77.33","obj2":"5.00","obj3":"12.50","obj4":"0.00"},
 {"id":"9","obj1":"128.54","obj2":"101.60","obj3":"15.76","obj4":"46.23"},
 {"id":"10","obj1":"107.00","obj2":"116.67","obj3":"34.42","obj4":"8.75"},
 {"id":"12","obj1":"206.05","obj2":"155.03","obj3":"36.96","obj4":"148.99"},
 {"id":"13","obj1":"133.93","obj2":"142.79","obj3":"39.91","obj4":"98.30"}
]

是的，将对象连接成这样的字符串不是一个好主意。但是，如果您没有其他选择，那么类似的方法应该可以：

const initialString = `{"id":"1","obj1":"191.25","obj2":"11.81","obj3":"3.44","obj4":"15.62"}
 {"id":"2","obj1":"642.00","obj2":"4.33","obj3":"0.00","obj4":"11.33"}
 {"id":"3","obj1":"153.76","obj2":"94.77","obj3":"16.80","obj4":"29.79"}
 {"id":"4","obj1":"61.71","obj2":"0.43","obj3":"0.00","obj4":"8.14"}
 {"id":"5","obj1":"194.33","obj2":"108.89","obj3":"14.13","obj4":"168.60"}
 {"id":"6","obj1":"204.31","obj2":"137.41","obj3":"34.76","obj4":"193.16"}
 {"id":"7","obj1":"199.53","obj2":"34.53","obj3":"16.29","obj4":"26.56"}
 {"id":"8","obj1":"77.33","obj2":"5.00","obj3":"12.50","obj4":"0.00"}
 {"id":"9","obj1":"128.54","obj2":"101.60","obj3":"15.76","obj4":"46.23"}
 {"id":"10","obj1":"107.00","obj2":"116.67","obj3":"34.42","obj4":"8.75"}
 {"id":"12","obj1":"206.05","obj2":"155.03","obj3":"36.96","obj4":"148.99"}
 {"id":"13","obj1":"133.93","obj2":"142.79","obj3":"39.91","obj4":"98.30"}`;
 
const json = `[${initialString.replace(/}\s*{/g, '},{')}]`;

const array = JSON.parse(json);

@苏米特
请看一下这个解决方案


let dataString=`{“id”：“1”，“obj1”：“191.25”，“obj2”：“11.81”，“obj3”：“3.44”，“obj4”：“15.62”}
{“id”：“2”，“obj1”：“642.00”，“obj2”：“4.33”，“obj3”：“0.00”，“obj4”：“11.33”}
{“id”：“3”，“obj1”：“153.76”，“obj2”：“94.77”，“obj3”：“16.80”，“obj4”：“29.79”}
{“id”：“4”，“obj1”：“61.71”，“obj2”：“0.43”，“obj3”：“0.00”，“obj4”：“8.14”}
{“id”：“5”，“obj1”：“194.33”，“obj2”：“108.89”，“obj3”：“14.13”，“obj4”：“168.60”}
{“id”：“6”，“obj1”：“204.31”，“obj2”：“137.41”，“obj3”：“34.76”，“obj4”：“193.16”}
{“id”：“7”、“obj1”：“199.53”、“obj2”：“34.53”、“obj3”：“16.29”、“obj4”：“26.56”}
{“id”：“8”，“obj1”：“77.33”，“obj2”：“5.00”，“obj3”：“12.50”，“obj4”：“0.00”}
{“id”：“9”，“obj1”：“128.54”，“obj2”：“101.60”，“obj3”：“15.76”，“obj4”：“46.23”}
{“id”：“10”，“obj1”：“107.00”，“obj2”：“116.67”，“obj3”：“34.42”，“obj4”：“8.75”}
{“id”：“12”、“obj1”：“206.05”、“obj2”：“155.03”、“obj3”：“36.96”、“obj4”：“148.99”}
{“id”：“13”，“obj1”：“133.93”，“obj2”：“142.79”，“obj3”：“39.91”，“obj4”：“98.30”}`；
让dataArray=dataString.match（/{（？：[^{}]*|（R））*}/g）；
dataArray=dataArray.map（d=>JSON.parse（d））；
log（数据数组）没有处理这种情况的好方法。你不应该首先连接JSON字符串。同意w/@Barmar-你的输入应该是固定的。如果可以避免的话，没有必要采取“变通办法”谢谢你们，会看到的