UrlQueryFilter.ValueFilter

java.lang.Object
- ohos.utils.net.UrlQueryFilter.ValueFilter

封闭类:

UrlQueryFilter
```
public static class UrlQueryFilter.ValueFilter
extends Object
```
Represents a filter used to filter out invalid characters in a query string and replace them with spaces or underscores (_). The filtering policy uses int values to control filtering. Each bit of the int value represents whether a character in the string will be filtered out. If the value of a bit is 1, the character is valid. If the value is 0, the character is invalid and will be filtered out.

从以下版本开始:

4

字段概要

字段
限定符和类型	字段	说明
`static int`	`ALLOW_8BIT_ASCII`	Indicates a filtering policy flag, which allows 8-bit ASCII characters (character code 128-255).
`static int`	`ALLOW_ALL`	Indicates a filtering policy flag, which allows all characters.
`static int`	`ALLOW_ALL_BUT_NUL`	Indicates a filtering policy flag, which allows any characters except `\0`.
`static int`	`ALLOW_AMP`	Indicates a filtering policy flag, which allows character `&`.
`static int`	`ALLOW_ENCODED_URL`	Indicates a filtering policy flag, which allows all possible characters in an encoded URL.
`static int`	`ALLOW_ESCHAR`	Indicates a filtering policy flag, which allows special escape characters `\t`, `\f`, `\n`, `\r`, and `\0x000b`.
`static int`	`ALLOW_NOTHING`	Indicates a filtering policy flag, which regards all special characters as invalid characters.
`static int`	`ALLOW_NUL`	Indicates a filtering policy flag, which allows `\0` characters.
`static int`	`ALLOW_PCT`	Indicates a filtering policy flag, which allows character `%`.
`static int`	`ALLOW_SINGLE_QUOTE`	Indicates a filtering policy flag, which allows character `'`.
`static int`	`ALLOW_SPACE`	Indicates a filtering policy flag, which allows spaces.

构造器概要

构造器
构造器说明

ValueFilter(int flags)
A constructor used to create a ValueFilter instance.

构造器
构造器	说明
`ValueFilter(int flags)`	A constructor used to create a `ValueFilter` instance.

方法概要

所有方法实例方法具体方法
限定符和类型	方法	说明
`String`	`filterUrl(String url)`	Filters out invalid characters from a specified URL query string based on the current filtering policy.

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

- 字段详细资料
  - ALLOW_8BIT_ASCII
```
public static final int ALLOW_8BIT_ASCII
```
    Indicates a filtering policy flag, which allows 8-bit ASCII characters (character code 128-255).
    
    从以下版本开始:
    
    5
    
    另请参阅:
    
    常量字段值
  - ALLOW_ALL
```
public static final int ALLOW_ALL
```
    Indicates a filtering policy flag, which allows all characters. The value of this flag is 0x7ff.
    
    从以下版本开始:
    
    4
    
    另请参阅:
    
    常量字段值
  - ALLOW_ALL_BUT_NUL
```
public static final int ALLOW_ALL_BUT_NUL
```
    Indicates a filtering policy flag, which allows any characters except \0.
    
    从以下版本开始:
    
    4
    
    另请参阅:
    
    常量字段值
  - ALLOW_AMP
```
public static final int ALLOW_AMP
```
    Indicates a filtering policy flag, which allows character &.
    
    从以下版本开始:
    
    5
    
    另请参阅:
    
    常量字段值
  - ALLOW_ENCODED_URL
```
public static final int ALLOW_ENCODED_URL
```
    Indicates a filtering policy flag, which allows all possible characters in an encoded URL.
    
    从以下版本开始:
    
    5
    
    另请参阅:
    
    常量字段值
  - ALLOW_ESCHAR
```
public static final int ALLOW_ESCHAR
```
    Indicates a filtering policy flag, which allows special escape characters \t, \f, \n, \r, and \0x000b. The value of this flag is 1<<2.
    
    从以下版本开始:
    
    4
    
    另请参阅:
    
    常量字段值
  - ALLOW_NOTHING
```
public static final int ALLOW_NOTHING
```
    Indicates a filtering policy flag, which regards all special characters as invalid characters. The value of this flag is 0.
    
    从以下版本开始:
    
    4
    
    另请参阅:
    
    常量字段值
  - ALLOW_NUL
```
public static final int ALLOW_NUL
```
    Indicates a filtering policy flag, which allows \0 characters. The value of this flag is 1<<1.
    
    从以下版本开始:
    
    4
    
    另请参阅:
    
    常量字段值
  - ALLOW_PCT
```
public static final int ALLOW_PCT
```
    Indicates a filtering policy flag, which allows character %.
    
    从以下版本开始:
    
    5
    
    另请参阅:
    
    常量字段值
  - ALLOW_SINGLE_QUOTE
```
public static final int ALLOW_SINGLE_QUOTE
```
    Indicates a filtering policy flag, which allows character '.
    
    从以下版本开始:
    
    5
    
    另请参阅:
    
    常量字段值
  - ALLOW_SPACE
```
public static final int ALLOW_SPACE
```
    Indicates a filtering policy flag, which allows spaces. The value of this flag is 1.
    
    从以下版本开始:
    
    4
    
    另请参阅:
    
    常量字段值
- 构造器详细资料
  - ValueFilter
```
public ValueFilter(int flags)
```
    A constructor used to create a ValueFilter instance.
    
    参数:
    
    flags - Indicates the flags of the filtering policy to specify invalid characters.
    
    从以下版本开始:
    
    4
- 方法详细资料
  - filterUrl
```
public String filterUrl(String url)
```
    Filters out invalid characters from a specified URL query string based on the current filtering policy.
    
    参数:
    
    url - Indicates the URL query string to be filtered.
    
    返回:
    
    Returns the query string without invalid characters.
    
    从以下版本开始:
    
    4

类 UrlQueryFilter.ValueFilter

字段概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

ALLOW_8BIT_ASCII

ALLOW_ALL

ALLOW_ALL_BUT_NUL

ALLOW_AMP

ALLOW_ENCODED_URL

ALLOW_ESCHAR

ALLOW_NOTHING

ALLOW_NUL

ALLOW_PCT

ALLOW_SINGLE_QUOTE

ALLOW_SPACE

构造器详细资料

ValueFilter

方法详细资料

filterUrl