对于ECLIPSE处理错误:Accessrestriction:ThetypeJPEGImageEncoderisnotaccessible..感兴趣的读者,本文将提供您所需要的所有信息,我们将详细讲
对于ECLIPSE处理错误:Access restriction: The type JPEGImageEncoder is not accessible..感兴趣的读者,本文将提供您所需要的所有信息,我们将详细讲解eclipse content assist 出现错误,并且为您提供关于'Access denied; you need (at least one of) the PROCESS privilege(s) for this operation' when trying to dump tablespaces、@types/passport version 1.0.5 生成新错误:Type Authenticator does not meet the constraint IncomingMessage、Access restriction: is not accessible、Access restriction: The constructor BASE64Encoder(的宝贵知识。
本文目录一览:- ECLIPSE处理错误:Access restriction: The type JPEGImageEncoder is not accessible..(eclipse content assist 出现错误)
- 'Access denied; you need (at least one of) the PROCESS privilege(s) for this operation' when trying to dump tablespaces
- @types/passport version 1.0.5 生成新错误:Type Authenticator does not meet the constraint IncomingMessage
- Access restriction: is not accessible
- Access restriction: The constructor BASE64Encoder(
ECLIPSE处理错误:Access restriction: The type JPEGImageEncoder is not accessible..(eclipse content assist 出现错误)
在Eclipse中处理图片,需要引入两个包:
import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
报错:Access restriction: The type JPEGImageEncoder is not accessible due to restriction on required library %JAVA_HOME%\lib\rt.jar
此时解决办法:Eclipse默认把这些受访问限制的API设成了ERROR。
只要把Windows-Preferences-Java-Complicer-Errors/Warnings里面的Deprecated and restricted API中的Forbidden references(access rules)选为Warning就可以编译通过。
'Access denied; you need (at least one of) the PROCESS privilege(s) for this operation' when trying to dump tablespaces
如何解决''Access denied; you need (at least one of) the PROCESS privilege(s) for this operation'' when trying to dump tablespaces?
利用--no-tablespaces
见mysqldump-文档
至少需要转储表的 SELECT 权限,转储视图的 SHOW VIEW ,转储触发器的 TRIGGER ,如果不使用 –single-transaction 选项,则需要 LOCK TABLES ,并且(从 MysqL 8.0.21 开始)PROCESS 如果 –不使用 no-tablespaces 选项。如选项描述中所述,某些选项可能需要其他权限。
并查看 param no-tablespaces的文档
–无表空间,-y
此选项抑制 MysqLdump 输出中的所有 CREATE LOGFILE GROUP 和 CREATE TABLESPACE 语句。
解决方法
我正在尝试使用命令备份 mysql
mysqldump -u root -p database_name > backup.sql
,但它抛出一个错误:
‘Access denied; you need (at least one of) the PROCESS privilege(s) for this operation’ when trying to dump tablespaces
另外,我想备份我的数据库,所有表都单独存储为一个文件。我该怎么做?
mysql 版本 = 5.7.31
@types/passport version 1.0.5 生成新错误:Type Authenticator does not meet the constraint IncomingMessage
也许身份验证器界面发生了变化? 你说的话!? 是的 - 界面更改,版本号仅略有更改!!!
我认为 koa-passport 的 serializeUser 界面可能与对 Passport 所做的更新不同步...在我的世界中 - 界面的重大更改通常意味着主要版本更改。
Passport V1.0.4 以下允许使用通用TUser
serializeUser
现在使用护照 V1.0.5,界面更改为限制为 Express.User。 serializeUser(fn: (user: Express.User,id?: TID) => void) => void): void;
Access restriction: is not accessible
最近在做关于图片操作的问题,但是发现在eclipse中,对于某些rt.jar里面的方法访问的时候,会出现错误提示: Access restriction: XXXXXXXXX is not accessible due to restriction on required library XXXXX本例的错误信息为 : 程序包com.sun.image.codec.jpeg不存在
一下所引入的包也有可能会发生问题: 例如 import sun.misc.BASE64Decoder; import com.sun.image.codec.jpeg.JPEGCodec;
会发现有一些解决方案:
解决办法一:
1. Open project properties.
2. Select Java Build Path node.
3. Select Libraries tab.
4. Remove JRE System Library 一次
5. 再次 Add Library JRE System Library
解决方案二:
Window-->Preferences-->Java-->Compiler-->Error/Warnings-->Deprecated and Restricted API 改为 warning
其实如果是操作某些非公开的JDK API的话,会出现这些问题,可以使用上述的解决方案,但是建议使用其他的方案代替,例如下例所给出的解决方案,用scaleImage2 代替 scaleImage 不使用受保护的方法
package com.zy.common.util;
import java.awt.Image;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import javax.imageio.ImageIO;
import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGEncodeParam;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
public class ImagesUtil {
/**
* 缩略图片
* @param oldpath 原图片
* @param newpath 新生成的图片存放地址
* @param wdith 缩略后的宽
* @param height 缩略后的高
*/
public static void scaleImage(String oldpath, String newpath, int wdith, int height) {
// 获取老的图片
File oldimg = new File(oldpath);
try {
BufferedImage bi = ImageIO.read(oldimg);
Image Itemp = bi.getScaledInstance(wdith, height, BufferedImage.SCALE_SMOOTH);
BufferedImage thumbnail = new BufferedImage(wdith, height, BufferedImage.TYPE_INT_RGB);
thumbnail.getGraphics().drawImage(Itemp, 0, 0, null);
// 缩略后的图片路径
File newimg = new File(newpath);
//FileOutputStream out = new FileOutputStream(newimg);
// 绘图
//JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
//JPEGEncodeParam param = encoder.getDefaultJPEGEncodeParam(thumbnail);
//param.setQuality(1.0f, false);
//encoder.encode(thumbnail);
//out.close();
String formatName = newpath.substring(newpath.lastIndexOf(".") + 1);
ImageIO.write(thumbnail, formatName , new File(newpath) );
bi.flush();
bi = null;
} catch (IOException e) {
System.out.println(e.getStackTrace());
}
}
/**
* 缩略图片
* @param oldpath 原图片
* @param newpath 新生成的图片存放地址
* @param wdith 缩略后的宽
* @param height 缩略后的高
*/
public static void scaleImage2(String oldpath, String newpath, int wdith, int height) {
// 获取老的图片
File oldimg = new File(oldpath);
try {
BufferedImage bi = ImageIO.read(oldimg);
Image Itemp = bi.getScaledInstance(wdith, height, BufferedImage.SCALE_SMOOTH);
BufferedImage thumbnail = new BufferedImage(wdith, height, BufferedImage.TYPE_INT_RGB);
thumbnail.getGraphics().drawImage(Itemp, 0, 0, null);
// 缩略后的图片路径
File newimg = new File(newpath);
FileOutputStream out = new FileOutputStream(newimg);
// 绘图
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
JPEGEncodeParam param = encoder.getDefaultJPEGEncodeParam(thumbnail);
param.setQuality(1.0f, false);
encoder.encode(thumbnail);
out.close();
bi.flush();
bi = null;
} catch (IOException e) {
System.out.println(e.getStackTrace());
}
}
}
Access restriction: The constructor BASE64Encoder(
Access restriction: The constructor BASE64Encoder() is not accessible due to restriction on required library D:\Program Files\Java\jdk1.6.0_35\jre\lib\rt.jar
在Eclipse中编写Java代码时,用到了BASE64Decoder,import sun.misc.BASE64Decoder;可是Eclipse提示:
Access restriction : The type BASE64Decoder is not accessible due to restriction on required library C:\Program
files\java\jre6\lib\rt.jar
Access restriction : The constructor BASE64Decoder() is not accessible due to restriction on required library C:\Program files\java\jre6\lib\rt.jar
搞不懂是为什么,最后在http://forums.dzone.com/eclipse/384-access-restriction-problems.html找到答案,只需要在project build path中先移除JRE System Library,再添加库JRE System Library,重新编译后就一切正常了。但是我仍然很疑惑是为什么。。。
原文见:http://zhoushuyan.cn/java/the-type-base64decoder-is-not-accessible-due-to-restriction-on-required-library/
------------------------------
Windows -> Preferences -> Java -> Compiler -> Errors/Warnings ->
Deprecated and trstricted API -> Forbidden reference (access rules): -> change to warning
我这样解决的!
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