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Java EE 5 SDK 深圳电信培训中心.徐海蛟老师. |
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摘要: 嵌套 | 字段 | 构造器 | 方法 | 详细信息: 字段 | 构造器 | 方法 |
javax.servlet.http Class HttpUtils
java.lang.Object javax.servlet.http.HttpUtils
Deprecated. As of Java(tm) Servlet API 2.3. These methods were only useful with the default encoding and have been moved to the request interfaces.
public class HttpUtils
- extends Object
构造器摘要 | |
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HttpUtils()
Deprecated. Constructs an empty HttpUtils object. |
方法摘要 | |
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static StringBuffer |
getRequestURL(HttpServletRequest req)
Deprecated. Reconstructs the URL the client used to make the request, using information in the HttpServletRequest object. |
static Hashtable |
parsePostData(int len,
ServletInputStream in)
Deprecated. Parses data from an HTML form that the client sends to the server using the HTTP POST method and the application/x-www-form-urlencoded MIME type. |
static Hashtable |
parseQueryString(String s)
Deprecated. Parses a query string passed from the client to the server and builds a HashTable object
with key-value pairs. |
类方法继承 java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
构造器详细信息 |
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HttpUtils
public HttpUtils()
- Deprecated.
- Constructs an empty
HttpUtils
object.
方法详细信息 |
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parseQueryString
public static Hashtable parseQueryString(String s)
- Deprecated.
- Parses a query string passed from the client to the
server and builds a
HashTable
object with key-value pairs. The query string should be in the form of a string packaged by the GET or POST method, that is, it should have key-value pairs in the form key=value, with each pair separated from the next by a & character.A key can appear more than once in the query string with different values. However, the key appears only once in the hashtable, with its value being an array of strings containing the multiple values sent by the query string.
The keys and values in the hashtable are stored in their decoded form, so any + characters are converted to spaces, and characters sent in hexadecimal notation (like %xx) are converted to ASCII characters.
- 参数:
s
- a string containing the query to be parsed- 返回:
- a
HashTable
object built from the parsed key-value pairs - 抛出异常:
IllegalArgumentException
- if the query string is invalid
parsePostData
public static Hashtable parsePostData(int len, ServletInputStream in)
- Deprecated.
- Parses data from an HTML form that the client sends to
the server using the HTTP POST method and the
application/x-www-form-urlencoded MIME type.
The data sent by the POST method contains key-value pairs. A key can appear more than once in the POST data with different values. However, the key appears only once in the hashtable, with its value being an array of strings containing the multiple values sent by the POST method.
The keys and values in the hashtable are stored in their decoded form, so any + characters are converted to spaces, and characters sent in hexadecimal notation (like %xx) are converted to ASCII characters.
- 参数:
len
- an integer specifying the length, in characters, of theServletInputStream
object that is also passed to this methodin
- theServletInputStream
object that contains the data sent from the client- 返回:
- a
HashTable
object built from the parsed key-value pairs - 抛出异常:
IllegalArgumentException
- if the data sent by the POST method is invalid
getRequestURL
public static StringBuffer getRequestURL(HttpServletRequest req)
- Deprecated.
- Reconstructs the URL the client used to make the request,
using information in the
HttpServletRequest
object. The returned URL contains a protocol, server name, port number, and server path, but it does not include query string parameters.Because this method returns a
StringBuffer
, not a string, you can modify the URL easily, for example, to append query parameters.This method is useful for creating redirect messages and for reporting errors.
- 参数:
req
- aHttpServletRequest
object containing the client's request- 返回:
- a
StringBuffer
object containing the reconstructed URL
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Java EE 5 SDK 深圳电信培训中心.徐海蛟老师. |
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上一个类 下一个 CLASS | 框架 无框架 | ||||||||
摘要: 嵌套 | 字段 | 构造器 | 方法 | 详细信息: 字段 | 构造器 | 方法 |
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