Top 41 Sun Misc Base64Encoder The 176 Correct Answer

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java – import sun.misc.BASE64Encoder results in error compiled in Eclipse – Stack Overflow

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Summary of article content: Articles about java – import sun.misc.BASE64Encoder results in error compiled in Eclipse – Stack Overflow Go to Window–>Preferences–>Java–>Compiler–>Error/Warnings. Select Deprecated and Restricted API. Change it to warning. …
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java – import sun.misc.BASE64Encoder results in error compiled in Eclipse – Stack Overflow

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Summary of article content: Articles about import sun.misc.BASE64Encoder dẫn đến lỗi được biên dịch trong Eclipse Đối với hai mặt hàng nhập khẩu này; import sun.misc.BASE64Encoder; import sun.misc.BASE64Decoder; Tôi gặp lỗi này: Access restriction: The type … …
Most searched keywords: Whether you are looking for import sun.misc.BASE64Encoder dẫn đến lỗi được biên dịch trong Eclipse Đối với hai mặt hàng nhập khẩu này; import sun.misc.BASE64Encoder; import sun.misc.BASE64Decoder; Tôi gặp lỗi này: Access restriction: The type … Đối với hai mặt hàng nhập khẩu này; import sun.misc.BASE64Encoder; import sun.misc.BASE64Decoder; Tôi gặp lỗi này: Access restriction: The type BASE64Decoder is not accessible due to…java,eclipse
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import sun.misc.BASE64Encoder dẫn đến lỗi được biên dịch trong Eclipse

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Summary of article content: Articles about Replace sun.misc.BASE64Encoder with java.util.Base64 · Issue #69 · Tencent/TubeMQ · GitHub Currently, we use internal sun.misc.BASE64Encoder inse com.tencent.tubemq.server.broker.BrokerServiceServer. …
Most searched keywords: Whether you are looking for Replace sun.misc.BASE64Encoder with java.util.Base64 · Issue #69 · Tencent/TubeMQ · GitHub Currently, we use internal sun.misc.BASE64Encoder inse com.tencent.tubemq.server.broker.BrokerServiceServer. Currently, we use internal class sun.misc.BASE64Encoder inside com.tencent.tubemq.server.broker.BrokerServiceServer. This class cannot be accessed anymore since Java 11. Although we might not have a upgrade plan in the near future, we ca…
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Replace sun.misc.BASE64Encoder with java.util.Base64 · Issue #69 · Tencent/TubeMQ · GitHub

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Download sun.misc.base64decoder.jar : sun « s « Jar File Download

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Summary of article content: Articles about How to Fix Access restriction: The type BASE64Decoder is not accessible due to restriction Error in Eclipse? [Solution] | Java67 This error comes because BASE64Decoder is part of the sun.misc package which is not part of JDK API. If you want to learn more about Java 8 base 64 … …
Most searched keywords: Whether you are looking for How to Fix Access restriction: The type BASE64Decoder is not accessible due to restriction Error in Eclipse? [Solution] | Java67 This error comes because BASE64Decoder is part of the sun.misc package which is not part of JDK API. If you want to learn more about Java 8 base 64 …
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import sun.misc.BASE64Encoder results in error compiled in Eclipse

This error (or warning in later versions) occurs because you are compiling against a Java Execution Environment. This shows up as JRE System library [CDC-1.0/Foundation-1.0] in the Build path of your Eclipse Java project. Such environments only expose the Java standard API instead of all the classes within the runtime. This means that the classes used to implement the Java standard API are not exposed.

You can allow access to these particular classes using access rules, you could configure Eclipse to use the JDK directly or you could disable the error. You would however be hiding a serious error as Sun internal classes shouldn’t be used (see below for a short explanation).

Java contains a Base64 class in the standard API since Java 1.8. See below for an example how to use it:

Java 8 import statement:

import java.util.Base64;

Java 8 example code:

// create a byte array containing data (test) byte[] binaryData = new byte[] { 0x64, 0x61, 0x74, 0x61 }; // create and configure encoder (using method chaining) Base64.Encoder base64Encoder = Base64.getEncoder().withoutPadding(); // encode to string (instead of a byte array containing ASCII) String base64EncodedData = base64Encoder.encodeToString(binaryData); // decode using a single statement (no reuse of decoder) // NOTE the decoder won’t fail because the padding is missing byte[] base64DecodedData = Base64.getDecoder().decode(base64EncodedData);

If Java 8 is not available a library such as Apache Commons Codec or Guava should be used.

Sun internal classes shouldn’t be used. Those classes are used to implement Java. They have got public methods to allow instantiation from other packages. A good build environment however should protect you from using them.

Using internal classes may break compatibility with future Java SE runtimes; the implementation and location of these classes can change at any time. It should be strongly discouraged to disable the error or warning (but the disabling of the error is suggested in previous answers, including the two top voted ones).

import sun.misc.BASE64Encoder dẫn đến lỗi được biên dịch trong Eclipse

Lỗi này (hoặc cảnh báo trong các phiên bản mới hơn) xảy ra do bạn đang biên dịch dựa trên Môi trường thực thi Java. Điều này hiển thị như JRE System library [CDC-1.0/Foundation-1.0] trong đường dẫn Xây dựng của dự án Java Eclipse của bạn. Những môi trường như vậy chỉ hiển thị API tiêu chuẩn Java thay vì tất cả các lớp trong thời gian chạy. Điều này có nghĩa là các lớp được sử dụng để triển khai API tiêu chuẩn Java không được hiển thị.

Bạn có thể cho phép truy cập vào các lớp cụ thể này bằng cách sử dụng các quy tắc truy cập, bạn có thể định cấu hình Eclipse để sử dụng JDK trực tiếp hoặc bạn có thể vô hiệu hóa lỗi. Tuy nhiên, bạn sẽ ẩn một lỗi nghiêm trọng vì không nên sử dụng các lớp nội bộ của Sun (xem phần giải thích ngắn gọn bên dưới).

Java chứa một Base64 lớp trong API tiêu chuẩn kể từ Java 1.8. Xem bên dưới để biết ví dụ về cách sử dụng nó:

Câu lệnh nhập Java 8:

import java.util.Base64;

Mã ví dụ Java 8:

// create a byte array containing data (test) byte[] binaryData = new byte[] { 0x64, 0x61, 0x74, 0x61 }; // create and configure encoder (using method chaining) Base64.Encoder base64Encoder = Base64.getEncoder().withoutPadding(); // encode to string (instead of a byte array containing ASCII) String base64EncodedData = base64Encoder.encodeToString(binaryData); // decode using a single statement (no reuse of decoder) // NOTE the decoder won’t fail because the padding is missing byte[] base64DecodedData = Base64.getDecoder().decode(base64EncodedData);

Nếu Java 8 không có sẵn , nên sử dụng thư viện như Apache Commons Codec hoặc Guava .

Không nên sử dụng các lớp nội bộ của CN . Các lớp đó được sử dụng để triển khai Java. Họ có các phương thức công khai để cho phép khởi tạo từ các gói khác. Tuy nhiên, một môi trường xây dựng tốt sẽ bảo vệ bạn khỏi việc sử dụng chúng.

Việc sử dụng các lớp bên trong có thể phá vỡ khả năng tương thích với các thời gian chạy Java SE trong tương lai; việc triển khai và vị trí của các lớp này có thể thay đổi bất cứ lúc nào. Không nên vô hiệu hóa lỗi hoặc cảnh báo (nhưng việc tắt lỗi được đề xuất trong các câu trả lời trước, bao gồm cả hai câu trả lời được bình chọn nhiều nhất).

Java Examples for sun.misc.BASE64Encoder

public static void main(final String[] s) { // java -classpath classes de.anomic.kelondro.kelondroBase64Order final Base64Order b64 = new Base64Order(true, true); if (s.length == 0) { System.out.println(“usage: -[ec|dc|es|ds|clcn] “); System.exit(0); } if (“-ec”.equals(s[0])) { // generate a b64 encoding from a given cardinal System.out.println(b64.encodeLongSB(Long.parseLong(s[1]), 4)); } if (“-dc”.equals(s[0])) { // generate a b64 decoding from a given cardinal System.out.println(b64.decodeLong(s[1])); } if (“-es”.equals(s[0])) { // generate a b64 encoding from a given string System.out.println(b64.encodeString(s[1])); } if (“-ds”.equals(s[0])) { // generate a b64 decoding from a given string System.out.println(b64.decodeString(s[1])); } if (“-cl”.equals(s[0])) { // return the cardinal of a given string as long value with the enhanced encoder System.out.println(Base64Order.enhancedCoder.cardinal(s[1].getBytes())); } if (“-cn”.equals(s[0])) { // return the cardinal of a given string as normalized float 0 .. 1 with the enhanced encoder System.out.println(((double) Base64Order.enhancedCoder.cardinal(s[1].getBytes())) / ((double) Long.MAX_VALUE)); } if (“-test”.equals(s[0])) { System.out.println(“Pid: ” + ManagementFactory.getRuntimeMXBean().getName()); // do some checks // not real random to be able to reproduce the test Random r = new Random(0); try { // use the class loader to call sun.misc. BASE64Encoder , the sun base64 encoder // we do not instantiate that class here directly since that provokes a // “warning: sun.misc. BASE64Encoder is internal proprietary API and may be removed in a future release” Class rfc1521Decoder_class = Class.forName(“sun.misc.BASE64Decoder”); Object rfc1521Decoder = rfc1521Decoder_class.newInstance(); Method rfc1521Decoder_decodeBuffer = rfc1521Decoder_class.getMethod(“decodeBuffer”, String.class); Class rfc1521Encoder_class = Class.forName(“sun.misc. BASE64Encoder “); Object rfc1521Encoder = rfc1521Encoder_class.newInstance(); Method rfc1521Encoder_encode = rfc1521Encoder_class.getMethod(“encode”, byte[].class); System.out.println(“preparing tests..”); // prepare challenges and results with rfc1521Encoder int count = 100000; String[] challenges = new String[count]; String[] rfc1521Encoded = new String[count]; for (int i = 0; i < count; i++) { int len = r.nextInt(10000); StringBuilder challenge = new StringBuilder(len); for (int j = 0; j < len; j++) challenge.append((char) (32 + r.nextInt(64))); challenges[i] = challenge.toString(); rfc1521Encoded[i] = (String) rfc1521Encoder_encode.invoke(rfc1521Encoder, UTF8.getBytes(challenges[i])); } // starting tests long start = System.currentTimeMillis(); for (boolean rfc1521Compliant : new boolean[] { false, true }) { System.out.println("starting tests, rfc1521Compliant = " + rfc1521Compliant + " ..."); String eb64, rfc1521; // encode with enhancedCoder, decode with standard RFC 1521 base64 for (int i = 0; i < count; i++) { if (rfc1521Compliant) { rfc1521 = Base64Order.standardCoder.encode(UTF8.getBytes(challenges[i])); } else { eb64 = Base64Order.enhancedCoder.encode(UTF8.getBytes(challenges[i])); rfc1521 = new String(eb64); while (rfc1521.length() % 4 != 0) rfc1521 += "="; rfc1521 = rfc1521.replace('-', '+').replace('_', '/'); } String rfc1521Decoded = UTF8.String((byte[]) rfc1521Decoder_decodeBuffer.invoke(rfc1521Decoder, rfc1521)); if (!rfc1521Decoded.equals(challenges[i])) System.out.println("Encode enhancedB64 + Decode RFC1521: Fail for " + challenges[i]); } // sun.misc. BASE64Encoder rfc1521Encoder = new sun.misc. BASE64Encoder (); for (int i = 0; i < count; i++) { // encode with enhancedCoder, decode with standard RFC 1521 base64 rfc1521 = new String(rfc1521Encoded[i]); if (rfc1521Compliant) { String standardCoderDecoded = UTF8.String(Base64Order.standardCoder.decode(rfc1521)); if (!standardCoderDecoded.equals(challenges[i])) System.out.println("Encode RFC1521 + Decode enhancedB64: Fail for " + rfc1521); } else { eb64 = new String(rfc1521); while (eb64.endsWith("=")) eb64 = eb64.substring(0, eb64.length() - 1); eb64 = eb64.replace('+', '-').replace('/', '_'); String enhancedCoderDecoded = UTF8.String(Base64Order.enhancedCoder.decode(eb64)); if (!enhancedCoderDecoded.equals(challenges[i])) System.out.println("Encode RFC1521 + Decode enhancedB64: Fail for " + eb64); } } } long time = System.currentTimeMillis() - start; System.out.println("time: " + (time / 1000) + " seconds, " + (1000 * time / count) + " ms / 1000 steps"); } catch (Throwable e) { e.printStackTrace(); } } }

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Top 41 Sun Misc Base64Encoder The 176 Correct Answer

java – import sun.misc.BASE64Encoder results in error compiled in Eclipse – Stack Overflow

import sun.misc.BASE64Encoder dẫn đến lỗi được biên dịch trong Eclipse

Replace sun.misc.BASE64Encoder with java.util.Base64 · Issue #69 · Tencent/TubeMQ · GitHub

Download sun.misc.base64decoder.jar : sun « s « Jar File Download

How to Fix Access restriction: The type BASE64Decoder is not accessible due to restriction Error in Eclipse? [Solution] | Java67

Java Platform SE 8

Java Examples for sun.misc.BASE64Encoder

OpenJDK still unsupported? “cannot find symbol sun.misc.BASE64Encoder” – Problem Reports – STEP Forum

import sun.misc.BASE64Encoder results in error compiled in Eclipse

import sun.misc.BASE64Encoder dẫn đến lỗi được biên dịch trong Eclipse

Java Examples for sun.misc.BASE64Encoder

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