1、引入 maven 依赖

<dependency>
    <groupId>org.apache.commons</groupId>
    <artifactId>commons-csv</artifactId>
    <version>1.9.0</version>
</dependency>

2、java 代码

    /**
     * csv 内容解析
     *
     * @param filePath    文件路径
     * @param charsetName 字符编码
     * @return List<Map < String, String>>
     */
    public List<Map<String, String>> resolveData(String filePath, String charsetName) {
        try {
            FileInputStream fileInputStream = new FileInputStream(filePath);
            InputStreamReader reader = new InputStreamReader(fileInputStream, charsetName);
            CSVParser parser = new CSVParser(reader, CSVFormat.DEFAULT);
            int headerFlag = 0;

            // 解析头部信息
            Map<Integer, String> headerMap = new HashMap<>(16);
            // 数据内容
            List<Map<String, String>> dataMapList = new ArrayList<>(10);
            for (CSVRecord record : parser) {

                if (headerFlag == 0) {
                    int headerIndex = 0;
                    Iterator<String> headerIterator = record.stream().iterator();
                    while (headerIterator.hasNext()) {
                        headerMap.put(headerIndex, headerIterator.next());
                        headerIndex++;
                    }
                    headerFlag = 1;
                } else {
                    Map<String, String> rowDataMap = new HashMap<>(16);
                    // 解析数据信息
                    Iterator<String> dataIterator = record.stream().iterator();
                    int dataIndex = 0;
                    while (dataIterator.hasNext()) {
                        String headerName = headerMap.get(dataIndex);
                        rowDataMap.put(headerName, dataIterator.next());
                        dataIndex++;
                    }
                    dataMapList.add(rowDataMap);
                }
            }
            return dataMapList;
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }