31 lines
1.3 KiB
Java
31 lines
1.3 KiB
Java
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import java.nio.file.Files;
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import java.nio.file.Paths;
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import java.util.Scanner;
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import com.caoccao.javet.interop.V8Host;
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import com.caoccao.javet.interop.V8Runtime;
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public class SheetJSJavet {
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public static void main(String[] args) throws Exception {
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/* initialize */
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V8Runtime v8Runtime = V8Host.getV8Instance().createV8Runtime();
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/* read script file */
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v8Runtime.getExecutor("var global = (function(){ return this; }).call(null);").executeVoid();
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v8Runtime.getExecutor(new Scanner(SheetJSJavet.class.getResourceAsStream("/xlsx.full.min.js")).useDelimiter("\\Z").next()).executeVoid();
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System.out.println(v8Runtime.getExecutor("'SheetJS Version ' + XLSX.version").executeString());
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/* read spreadsheet bytes */
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v8Runtime.getGlobalObject().set("i8", Files.readAllBytes(Paths.get(args[0])));
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v8Runtime.getExecutor("var u8 = new Uint8Array(i8.buffer, i8.byteOffset, i8.length);").executeVoid();
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/* parse workbook */
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v8Runtime.getExecutor("var wb = XLSX.read(u8, {type: 'array'})").executeVoid();
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/* get first worksheet as CSV */
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v8Runtime.getExecutor("var ws = wb.Sheets[wb.SheetNames[0]];").executeVoid();
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String res = v8Runtime.getExecutor("XLSX.utils.sheet_to_csv(ws)").executeString();
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System.out.println(res);
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}
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}
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