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我正在測試IOUtils。我有問題,一個InputStream轉換成字節數組:String.getBytes()和IOUtils.toByteArray()之間的區別?
private static final String LOREM_IPSUM = "Lorem ipsum dolor sit amet, consectetur adipiscing elit.";
@Test
public void testInputStreamToByteArray() throws IOException {
byte[] expecteds = LOREM_IPSUM.getBytes();
byte[] actuals = org.apache.commons.io.IOUtils.toByteArray(new StringInputStream(LOREM_IPSUM));
assertArrayEquals(expecteds, actuals);
}
堆棧跟蹤:
java.lang.AssertionError: array lengths differed, expected.length=56 actual.length=112
at org.junit.Assert.fail(Assert.java:91)
at org.junit.internal.ComparisonCriteria.assertArraysAreSameLength(ComparisonCriteria.java:72)
at org.junit.internal.ComparisonCriteria.arrayEquals(ComparisonCriteria.java:36)
at org.junit.Assert.internalArrayEquals(Assert.java:414)
at org.junit.Assert.assertArrayEquals(Assert.java:200)
at org.junit.Assert.assertArrayEquals(Assert.java:213)
at [...].testInputStreamToByteArray(HttpsTest.java:20)[...]
我不明白爲什麼不通過測試。哪裏不對?
謝謝!但是toByteArray不接受InputStream和String。兩個選項: 'IOUtils.toByteArray(new StringReader(LOREM_IPSUM),「UTF-8」); IOUtils.toByteArray(新的InputStreamReader(是),「UTF-8」);' – Falci
啊,沒有注意到你在使用java.io.InputStream。你需要使用一個閱讀器,或者更具體的StringReader: 'byte [] actuals = org.apache.commons.io.IOUtils.toByteArray(new StringReader(LOREM_IPSUM),「UTF-8」);' –
我的評論只是爲了澄清。再次感謝你。 – Falci