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如何从github解析csv?

jquery javascript

rob.m · 技术社区 · 4 年前

jQuery.ajax({
    url: "https://raw.githubusercontent.com/CSSEGISandData/COVID-19/master/csse_covid_19_data/csse_covid_19_time_series/time_series_19-covid-Confirmed.csv",
    type: 'get',
    dataType: 'json',
    success: function(data) {
        console.log(data);
    },
    error: function(jqXHR, textStatus, errorThrow){
        alert("Error: " + jqXHR['responseText']);
    }
});

我需要格式为json的输出,但它会出错,基本上是试图解析这个

https://raw.githubusercontent.com/CSSEGISandData/COVID-19/master/csse_covid_19_data/csse_covid_19_time_series/time_series_19-covid-Confirmed.csv

1 回复 | 直到 4 年前

mickl 4 年前

你必须使用 dataType 作为 text split 使用double for循环将数据获取为JS对象数组:

jQuery.ajax({
    url: "https://raw.githubusercontent.com/CSSEGISandData/COVID-19/master/csse_covid_19_data/csse_covid_19_time_series/time_series_19-covid-Confirmed.csv",
    type: 'get',
    dataType: 'text',
    success: function(data) {
        let lines = data.split('\n');
        let fields = lines[0].split(',');
        
        let output = [];
        
        for(let i = 1; i < lines.length; i++){
           let current = lines[i].split(',');
           let doc = {};
           for(let j = 0; j < fields.length; j++){
               doc[fields[j]] = current[j];
           }
           output.push(doc);
        }       
        
        console.log(output);
    },
    error: function(jqXHR, textStatus, errorThrow){
        console.log(textStatus);
    }
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

blex 4 年前

"...".split(',') . 这里的文件是 perfect example of that . 有些字段包含 ,

我建议使用 Papa Parse

$.ajax({
    url: "https://raw.githubusercontent.com/CSSEGISandData/COVID-19/master/csse_covid_19_data/csse_covid_19_time_series/time_series_19-covid-Confirmed.csv",
    success: function(csv) {
        const output = Papa.parse(csv, {
          header: true, // Convert rows to Objects using headers as properties
        });
        if (output.data) {
          console.log(output.data);
        } else {
          console.log(output.errors);
        }
    },
    error: function(jqXHR, textStatus, errorThrow){
        console.log(textStatus);
    }
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/PapaParse/5.1.0/papaparse.min.js"></script>