本文整理了Java中java.io.BufferedReader.mark()方法的一些代码示例，展示了BufferedReader.mark()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。BufferedReader.mark()方法的具体详情如下：
包路径：java.io.BufferedReader
类名称：BufferedReader
方法名：mark
[英]Sets a mark position in this reader. The parameter markLimitindicates how many characters can be read before the mark is invalidated. Calling reset() will reposition the reader back to the marked position if markLimit has not been surpassed.
[中]设置此读卡器中的标记位置。参数MarkLimit指示在标记无效之前可以读取的字符数。如果未超过markLimit，则调用reset（）将读取器重新定位到标记位置。
代码示例来源：origin: org.codehaus.groovy/groovy
/**
* Marks the present position in the stream. Subsequent calls to reset() will attempt to reposition the stream to this point.
*
* @param readAheadLimit Limit on the number of characters that may be read while still preserving the mark.
* An attempt to reset the stream after reading characters up to this limit or beyond may fail.
* A limit value larger than the size of the input buffer will cause a new buffer to be allocated whose size is no smaller than limit.
* Therefore large values should be used with care.
*/
@Override
public void mark(int readAheadLimit) throws IOException {
lineMark = line;
columnMark = column;
super.mark(readAheadLimit);
}代码示例来源：origin: robovm/robovm
/**
* Sets a mark position in this reader. The parameter {@code readlimit}
* indicates how many characters can be read before the mark is invalidated.
* Sending {@code reset()} will reposition this reader back to the marked
* position, provided that {@code readlimit} has not been surpassed. The
* line number associated with this marked position is also stored so that
* it can be restored when {@code reset()} is called.
*
* @param readlimit
* the number of characters that can be read from this stream
* before the mark is invalidated.
* @throws IOException
* if an error occurs while setting the mark in this reader.
* @see #markSupported()
* @see #reset()
*/
@Override
public void mark(int readlimit) throws IOException {
synchronized (lock) {
super.mark(readlimit);
markedLineNumber = lineNumber;
markedLastWasCR = lastWasCR;
}
}代码示例来源：origin: libgdx/libgdx
public void load (BufferedReader reader) throws IOException {
super.load(reader);
// For backwards compatibility, independent property may not be defined
reader.mark(100);
String line = reader.readLine();
if (line == null) throw new IOException("Missing value: " + "independent");
if (line.contains("independent"))
independent = Boolean.parseBoolean(readString(line));
else
reader.reset();
}代码示例来源：origin: libgdx/libgdx
public void load (BufferedReader reader) throws IOException {
super.load(reader);
// For backwards compatibility, independent property may not be defined
reader.mark(100);
String line = reader.readLine();
if (line == null) throw new IOException("Missing value: " + "independent");
if (line.contains("independent"))
independent = Boolean.parseBoolean(readString(line));
else
reader.reset();
}代码示例来源：origin: marytts/marytts
/**
* Whether or not any more data can be read from this data source.
*
* @return true if another call to getData() will return data, false otherwise.
*/
public boolean hasMoreData() {
int c = -1;
try {
reader.mark(10);
c = reader.read();
reader.reset();
} catch (IOException ioe) {
ioe.printStackTrace();
}
return c != -1;
}代码示例来源：origin: stanfordnlp/CoreNLP
public static List<SemgrexPattern> compileStream(InputStream is, Env env) throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
reader.mark(MAX_STREAM_SIZE);
Map<String, String> macros = preprocess(reader);
reader.reset();
return parse(reader, macros, env);
}代码示例来源：origin: marytts/marytts
/**
* Whether or not any more data can be read from this data source.
*
* @return true if another call to getData() will return data, false otherwise.
*/
public boolean hasMoreData() {
int c = -1;
try {
reader.mark(10);
c = reader.read();
reader.reset();
} catch (IOException ioe) {
ioe.printStackTrace();
}
return c != -1;
}代码示例来源：origin: kiegroup/optaplanner
public boolean readOptionalConstantLine(String constantRegex) throws IOException {
bufferedReader.mark(1024);
boolean valid = true;
String line = bufferedReader.readLine();
if (line == null) {
valid = false;
} else {
String value = line.trim();
if (!value.matches(constantRegex)) {
valid = false;
}
}
if (!valid) {
bufferedReader.reset();
}
return valid;
}代码示例来源：origin: Rajawali/Rajawali
/**
* Determine if a given BufferedReader appears to be in ASCII format.
*
* @param buffer
* @return
* @throws IOException
*/
public static final boolean isASCII(BufferedReader buffer) throws IOException {
final char[] readAhead = new char[300];
buffer.mark(readAhead.length);
buffer.read(readAhead, 0, readAhead.length);
buffer.reset();
final String readAheadString = new String(readAhead);
// If the following text is present, then this is likely an ascii file
return readAheadString.contains("facet normal") && readAheadString.contains("outer loop");
// Likely a binary file
}代码示例来源：origin: apache/geode
/** create a stack with the given initial lines, reading the rest from the Reader */
ThreadStack(String firstLine, String secondLine, String thirdLine, BufferedReader reader)
throws IOException {
lines.add(firstLine);
lines.add(secondLine);
runnable = secondLine.contains("RUNNABLE");
lines.add(thirdLine);
String line = null;
do {
reader.mark(100000);
line = reader.readLine();
if (line == null || line.trim().length() == 0) {
break;
}
if (line.startsWith("\"")) {
reader.reset();
break;
}
lines.add(line);
} while (true);
}代码示例来源：origin: embulk/embulk
private void skipBom() {
boolean skip = false;
try {
if (charset.equals(UTF_8)) {
reader.mark(3);
int firstChar = reader.read();
if (firstChar == 0xFEFF) {
// skip BOM bytes
skip = true;
}
}
} catch (IOException ex) {
// Passing through intentionally.
} finally {
if (skip) {
// firstChar is skipped
} else {
// rollback to the marked position
try {
reader.reset();
} catch (IOException ex) {
// unexpected
throw new RuntimeException(ex);
}
}
}
}代码示例来源：origin: kiegroup/optaplanner
public String readOptionalStringValue(String prefixRegex, String suffixRegex, String defaultValue) throws IOException {
bufferedReader.mark(1024);
boolean valid = true;
String value = bufferedReader.readLine();
if (value == null) {
valid = false;
} else {
value = value.trim();
if (value.matches("^" + prefixRegex + ".*")) {
value = value.replaceAll("^" + prefixRegex + "(.*)", "$1");
} else {
valid = false;
}
if (value.matches(".*" + suffixRegex + "$")) {
value = value.replaceAll("(.*)" + suffixRegex + "$", "$1");
} else {
valid = false;
}
}
if (!valid) {
bufferedReader.reset();
return defaultValue;
}
value = value.trim();
return value;
}代码示例来源：origin: com.h2database/h2
BufferedReader reader = new BufferedReader(new InputStreamReader(in, charset));
reader.mark(1);
if (reader.read() != UTF8_BOM) {
reader.reset();代码示例来源：origin: lealone/Lealone
BufferedReader reader = new BufferedReader(new InputStreamReader(in, charset));
reader.mark(1);
if (reader.read() != UTF8_BOM) {
reader.reset();代码示例来源：origin: lealone/Lealone
} else {
buff = new char[len];
reader.mark(len);
len = IOUtils.readFully(reader, buff, len);代码示例来源：origin: com.h2database/h2
} else {
buff = new char[len];
reader.mark(len);
len = IOUtils.readFully(reader, buff, len);代码示例来源：origin: geoserver/geoserver
public void testParseXML() throws Exception {
URL url = getClass().getResource("applicationContext.xml");
FileSystemXmlApplicationContext context =
new FileSystemXmlApplicationContext(url.toString());
Dispatcher dispatcher = (Dispatcher) context.getBean("dispatcher");
String body = "<Hello service=\"hello\" message=\"Hello world!\"/>";
File file = File.createTempFile("geoserver", "req");
try {
FileOutputStream output = new FileOutputStream(file);
output.write(body.getBytes());
output.flush();
output.close();
BufferedReader input =
new BufferedReader(new InputStreamReader(new FileInputStream(file)));
input.mark(8192);
Request req = new Request();
req.setInput(input);
Object object = dispatcher.parseRequestXML(null, input, req);
assertEquals(new Message("Hello world!"), object);
} finally {
file.delete();
}
}代码示例来源：origin: lealone/Lealone
if (max != 0 && max < Integer.MAX_VALUE) {
BufferedReader b = new BufferedReader(reader, max);
b.mark(max);
char[] small = new char[max];
int len = IOUtils.readFully(b, small, max);代码示例来源：origin: geoserver/geoserver
public void testReadOpPost() throws Exception {
MockHttpServletRequest request = new MockHttpServletRequest();
request.setContextPath("/geoserver");
request.setRequestURI("/geoserver/hello");
request.setMethod("post");
String body = "<Hello service=\"hello\"/>";
DelegatingServletInputStream input =
new DelegatingServletInputStream(new ByteArrayInputStream(body.getBytes()));
Dispatcher dispatcher = new Dispatcher();
BufferedReader buffered = new BufferedReader(new InputStreamReader(input));
buffered.mark(2048);
Map map = dispatcher.readOpPost(buffered);
assertNotNull(map);
assertEquals("Hello", map.get("request"));
assertEquals("hello", map.get("service"));
}代码示例来源：origin: spring-projects/spring-batch
@Test
public void testMarkResetWithLineEnding() throws Exception {
SimpleBinaryBufferedReaderFactory factory = new SimpleBinaryBufferedReaderFactory();
factory.setLineEnding("||");
@SuppressWarnings("resource")
BufferedReader reader = factory.create(new ByteArrayResource("a||b||c".getBytes()), "UTF-8");
assertEquals("a", reader.readLine());
reader.mark(1024);
assertEquals("b", reader.readLine());
reader.reset();
assertEquals("b", reader.readLine());
assertEquals("c", reader.readLine());
assertEquals(null, reader.readLine());
}内容来源于网络，如有侵权，请联系作者删除！