Handler (Spring Boot API)

java.lang.Object
- java.net.URLStreamHandler
- - org.springframework.boot.loader.jar.Handler

```
public class Handler
extends URLStreamHandler
```
URLStreamHandler for Spring Boot loader JarFiles.
另请参阅:
JarFile.registerUrlProtocolHandler()

构造器概要
构造器
构造器说明
Handler()
Handler(JarFile jarFile)

方法概要

所有方法静态方法实例方法具体方法
修饰符和类型	方法	说明
`JarFile`	`getRootJarFileFromUrl(URL url)`
`protected int`	`hashCode(URL u)`
`protected URLConnection`	`openConnection(URL url)`
`protected void`	`parseURL(URL context, String spec, int start, int limit)`
`protected boolean`	`sameFile(URL u1, URL u2)`
`static void`	`setUseFastConnectionExceptions(boolean useFastConnectionExceptions)`	Set if a generic static exception can be thrown when a URL cannot be connected.

从类继承的方法 java.net.URLStreamHandler
equals, getDefaultPort, getHostAddress, hostsEqual, openConnection, setURL, setURL, toExternalForm

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

Handler
```
public Handler()
```

Handler
```
public Handler(JarFile jarFile)
```

方法详细资料

openConnection

protected URLConnection openConnection(URL url)
                                throws IOException

指定者:: openConnection 在类中 URLStreamHandler
抛出:: IOException

parseURL

protected void parseURL(URL context,
                        String spec,
                        int start,
                        int limit)

覆盖:: parseURL 在类中 URLStreamHandler

hashCode
```
protected int hashCode(URL u)
```
覆盖:
hashCode 在类中 URLStreamHandler

sameFile

protected boolean sameFile(URL u1,
                           URL u2)

覆盖:: sameFile 在类中 URLStreamHandler

getRootJarFileFromUrl

public JarFile getRootJarFileFromUrl(URL url)
                              throws IOException

抛出:: IOException

setUseFastConnectionExceptions
```
public static void setUseFastConnectionExceptions(boolean useFastConnectionExceptions)
```
Set if a generic static exception can be thrown when a URL cannot be connected. This optimization is used during class loading to save creating lots of exceptions which are then swallowed.
参数:
useFastConnectionExceptions - if fast connection exceptions can be used.