开发环境：eclipse3.3+myeclipse6.0+jdk6.0+tomcat6.0+mysql5.5
mysql->jsp网页的中文能正确显示；
但是jsp网页上的中文不能正确存入到mysql中，是乱码，多数为“？”号；
1.我的每个jsp文件的开头都加有
<%@ page language="java" contentType="text/html; charset=GB2312" pageEncoding="GB2312"%>
2.my.ini 为
MySQL Server Instance Configuration File
----------------------------------------------------------------------
Generated by the MySQL Server Instance Configuration Wizard
#
#
Installation Instructions
----------------------------------------------------------------------
#
On Linux you can copy this file to /etc/my.cnf to set global options,
mysql-data-dir/my.cnf to set server-specific options
(@localstatedir@ for this installation) or to
~/.my.cnf to set user-specific options.
#
On Windows you should keep this file in the installation directory
of your server (e.g. C:\Program Files\MySQL\MySQL Server X.Y). To
make sure the server reads the config file use the startup option
"--defaults-file".
#
To run run the server from the command line, execute this in a
command line shell, e.g.
mysqld --defaults-file="C:\Program Files\MySQL\MySQL Server X.Y\my.ini"
#
To install the server as a Windows service manually, execute this in a
command line shell, e.g.
mysqld --install MySQLXY --defaults-file="C:\Program Files\MySQL\MySQL Server X.Y\my.ini"
#
And then execute this in a command line shell to start the server, e.g.
net start MySQLXY
#
#
Guildlines for editing this file
----------------------------------------------------------------------
#
In this file, you can use all long options that the program supports.
If you want to know the options a program supports, start the program
with the "--help" option.
#
More detailed information about the individual options can also be
found in the manual.
#
#
CLIENT SECTION
----------------------------------------------------------------------
#
The following options will be read by MySQL client applications.
Note that only client applications shipped by MySQL are guaranteed
to read this section. If you want your own MySQL client program to
honor these values, you need to specify it as an option during the
MySQL client library initialization.
#
[client]
port=3306
[mysql]
#default-character-set=latin1
default-character-set=gbk
SERVER SECTION
----------------------------------------------------------------------
#
The following options will be read by the MySQL Server. Make sure that
you have installed the server correctly (see above) so it reads this
file.
#
[mysqld]
The TCP/IP Port the MySQL Server will listen on
port=3306
#Path to installation directory. All paths are usually resolved relative to this.
basedir="C:/Program Files/MySQL/MySQL Server 5.0/"
#Path to the database root
datadir="C:/Program Files/MySQL/MySQL Server 5.0/Data/"
The default character set that will be used when a new schema or table is
created and no character set is defined
#default-character-set=latin1
default-character-set=gbk
The default storage engine that will be used when create new tables when
default-storage-engine=INNODB
Set the SQL mode to strict
sql-mode="STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"
The maximum amount of concurrent sessions the MySQL server will
allow. One of these connections will be reserved for a user with
SUPER privileges to allow the administrator to login even if the
connection limit has been reached.
max_connections=100
Query cache is used to cache SELECT results and later return them
without actual executing the same query once again. Having the query
cache enabled may result in significant speed improvements, if your
have a lot of identical queries and rarely changing tables. See the
"Qcache_lowmem_prunes" status variable to check if the current value
is high enough for your load.
Note: In case your tables change very often or if your queries are
textually different every time, the query cache may result in a
slowdown instead of a performance improvement.
query_cache_size=0
The number of open tables for all threads. Increasing this value
increases the number of file descriptors that mysqld requires.
Therefore you have to make sure to set the amount of open files
allowed to at least 4096 in the variable "open-files-limit" in
section [mysqld_safe]
table_cache=256
Maximum size for internal (in-memory) temporary tables. If a table
grows larger than this value, it is automatically converted to disk
based table This limitation is for a single table. There can be many
of them.
tmp_table_size=5M
How many threads we should keep in a cache for reuse. When a client
disconnects, the client's threads are put in the cache if there aren't
more than thread_cache_size threads from before. This greatly reduces
the amount of thread creations needed if you have a lot of new
connections. (Normally this doesn't give a notable performance
improvement if you have a good thread implementation.)
thread_cache_size=8
#*** MyISAM Specific options
The maximum size of the temporary file MySQL is allowed to use while
recreating the index (during REPAIR, ALTER TABLE or LOAD DATA INFILE.
If the file-size would be bigger than this, the index will be created
through the key cache (which is slower).
myisam_max_sort_file_size=100G
If the temporary file used for fast index creation would be bigger
than using the key cache by the amount specified here, then prefer the
key cache method. This is mainly used to force long character keys in
large tables to use the slower key cache method to create the index.
myisam_max_extra_sort_file_size=100G
If the temporary file used for fast index creation would be bigger
than using the key cache by the amount specified here, then prefer the
key cache method. This is mainly used to force long character keys in
large tables to use the slower key cache method to create the index.
myisam_sort_buffer_size=8M
Size of the Key Buffer, used to cache index blocks for MyISAM tables.
Do not set it larger than 30% of your available memory, as some memory
is also required by the OS to cache rows. Even if you're not using
MyISAM tables, you should still set it to 8-64M as it will also be
used for internal temporary disk tables.
key_buffer_size=8M
Size of the buffer used for doing full table scans of MyISAM tables.
Allocated per thread, if a full scan is needed.
read_buffer_size=64K
read_rnd_buffer_size=256K
This buffer is allocated when MySQL needs to rebuild the index in
REPAIR, OPTIMZE, ALTER table statements as well as in LOAD DATA INFILE
into an empty table. It is allocated per thread so be careful with
large settings.
sort_buffer_size=212K
#*** INNODB Specific options ***
Use this option if you have a MySQL server with InnoDB support enabled
but you do not plan to use it. This will save memory and disk space
and speed up some things.
#skip-innodb
Additional memory pool that is used by InnoDB to store metadata
information. If InnoDB requires more memory for this purpose it will
start to allocate it from the OS. As this is fast enough on most
recent operating systems, you normally do not need to change this
value. SHOW INNODB STATUS will display the current amount used.
innodb_additional_mem_pool_size=2M
If set to 1, InnoDB will flush (fsync) the transaction logs to the
disk at each commit, which offers full ACID behavior. If you are
willing to compromise this safety, and you are running small
transactions, you may set this to 0 or 2 to reduce disk I/O to the
logs. Value 0 means that the log is only written to the log file and
the log file flushed to disk approximately once per second. Value 2
means the log is written to the log file at each commit, but the log
file is only flushed to disk approximately once per second.
innodb_flush_log_at_trx_commit=1
The size of the buffer InnoDB uses for buffering log data. As soon as
it is full, InnoDB will have to flush it to disk. As it is flushed
once per second anyway, it does not make sense to have it very large
(even with long transactions).
innodb_log_buffer_size=1M
InnoDB, unlike MyISAM, uses a buffer pool to cache both indexes and
row data. The bigger you set this the less disk I/O is needed to
access data in tables. On a dedicated database server you may set this
parameter up to 80% of the machine physical memory size. Do not set it
too large, though, because competition of the physical memory may
cause paging in the operating system. Note that on 32bit systems you
might be limited to 2-3.5G of user level memory per process, so do not
set it too high.
innodb_buffer_pool_size=8M
Size of each log file in a log group. You should set the combined size
of log files to about 25%-100% of your buffer pool size to avoid
unneeded buffer pool flush activity on log file overwrite. However,
note that a larger logfile size will increase the time needed for the
recovery process.
innodb_log_file_size=10M
Number of threads allowed inside the InnoDB kernel. The optimal value
depends highly on the application, hardware as well as the OS
scheduler properties. A too high value may lead to thread thrashing.
innodb_thread_concurrency=8
3.mysql表的字符集都用的是gbk；
4.hibernate.cfg.xml为
<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 2.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-2.0.dtd">
<session-factory>
<property name="dialect">
net.sf.hibernate.dialect.MySQLDialect
</property>
<property name="connection.url">
<![CDATA[jdbc:mysql://localhost:3306/webdemodb?useUnicode=true&characterEncoding=GBK&mysqlEncoding=GBK ]]>
</property>
<property name="connection.username">root</property>
<property name="connection.password">admin</property>
<property name="connection.useUnicode">true</property>
<property name="connection.characterEncoding">GBK</property>
<property name="connection.driver_class">
com.mysql.jdbc.Driver
</property>
<property name="myeclipse.connection.profile">
mysql_Demo
</property>
<mapping resource="com/cs2c/webdemo/po/Disposeinfo.hbm.xml" />
<mapping resource="com/cs2c/webdemo/po/Progress.hbm.xml" ></mapping>
<mapping resource="com/cs2c/webdemo/po/Role.hbm.xml" />
<mapping resource="com/cs2c/webdemo/po/User.hbm.xml" />
</session-factory>
请各位看看，还需要做些什么？ :arrow:
[b]问题补充：[/b]
过滤器，没有用过。
在web.xml中,这样对吗：
<?xml version="1.0" encoding="UTF-8"?>
encodingFilter
org.springframework.web.filter.CharacterEncodingFilter
encoding
UTF-8
forceEncoding
true
encodingFilter
.do
encodingFilter
.jsp
action
org.apache.struts.action.ActionServlet
config
/WEB-INF/struts-config.xml
debug
3
detail
3
0
action
*.do
index.jsp
还要加入spring框架吧？
web.xml改成上面的后，网页不能访问了？
<%@ page contentType="text/html;charset=UTF-8"%> 我在.jsp文件中还没有加。
[b]问题补充：[/b]
问题已经解决，结贴。
感谢参与讨论了兄弟姐妹，尤其是eyeqq (中级程序员），做个总结。
因为我的代码使用gb2312写的，并且文件数目较多，就没有改用utf-8（以后再做此类项目时会采用，以免出现不必要的麻烦），在满足我上述提到的4点以外，我又加入过滤器，即可解决中文乱码问题。
5.新建EncodingFilter.java文件：
package com.cs2c.webdemo.util;
import java.io.*;
import javax.servlet.*;
public class EncodingFilter implements Filter
{
protected String encoding = null;
protected FilterConfig config;
public void init(FilterConfig filterConfig) throws ServletException
{
this.config = filterConfig;
//从web.xml配置文件中获取编码配置
this.encoding = filterConfig.getInitParameter("Encoding");
}
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException
{
if(request.getCharacterEncoding() == null)
{
String encode = getEncoding();
if(encode != null)
{
//设置request的编码方式
request.setCharacterEncoding(encode);
}
}
chain.doFilter(request,response);
}
public String getEncoding()
{
return encoding;
}
public void destroy()
{
}
}
6.web.xml为：
<?xml version="1.0" encoding="UTF-8"?>
encodingFilter
com.cs2c.webdemo.util.EncodingFilter
Encoding
GB2312
encodingFilter
/*
action
org.apache.struts.action.ActionServlet
config
/WEB-INF/struts-config.xml
debug
3
detail
3
0
action
*.do
index.jsp
