在Android App中读取CSV文件

尝试OpenCSV-这将使您的生活更轻松。

首先，将此包添加到您的

gradle

implementation 'com.opencsv:opencsv:4.6'

那你要么做

import com.opencsv.CSVReader;import java.io.IOException;import java.io.FileReader;...try {    CSVReader reader = new CSVReader(new FileReader("yourfile.csv"));    String[] nextLine;    while ((nextLine = reader.readNext()) != null) {        // nextLine[] is an array of values from the line        System.out.println(nextLine[0] + nextLine[1] + "etc...");    }} catch (IOException e) {}

要么

CSVReader reader = new CSVReader(new FileReader("yourfile.csv"));List myEntries = reader.readAll();

评论后编辑

try {    File csvfile = new File(Environment.getExternalStorageDirectory() + "/csvfile.csv");    CSVReader reader = new CSVReader(new FileReader(csvfile.getAbsolutePath()));    String[] nextLine;    while ((nextLine = reader.readNext()) != null) {        // nextLine[] is an array of values from the line        System.out.println(nextLine[0] + nextLine[1] + "etc...");    }} catch (Exception e) {    e.printStackTrace();    Toast.makeText(this, "The specified file was not found", Toast.LENGTH_SHORT).show();}

如果您想将

.csv

assets

src/main

c:myappappsrcmainassets

.csv

String csvfileString = this.getApplicationInfo().dataDir + File.separatorChar + "csvfile.csv"File csvfile = new File(csvfileString);