1  jsp-jdbc-mysql中文乱码

采用jsp+mysql的编程方式，会遇到中文乱码问题，修改mysql和jsp相关配置文件，统一为一种编码格式（比如utf8）即可解决。

1.1  mysql乱码解决方法

use mysql;

# 设置字符集统一为utf8

set character_set_client=utf8;

set character_set_connection=utf8;

set character_set_database=utf8;

set character_set_results=utf8;

set character_set_server=utf8;

# 检查字符集设置结果

show variables like 'character%'

show variables like 'collation_%'

# 创建表，测试设置效果

create table test(id int,c1 varchar(20));

alter table test modify c1 varchar(20)character set utf8;

insert into test values(1,'张三');

insert into test values(2,'李四');

commit;

select * from test;

# 在mysql的配置文件my_default.ini中设置字符集为utf8

[mysqld]

port = 3306

default-character-set = utf8

character-set-server = utf8

[client]

default-character-set = utf8

[server]

default-character-set = utf8

[mysql]

default-character-set = utf8

1.2  JSP乱码解决方法

# 修改相关配置文件中的字符集变量，包括：server.xml,web.xml,jsp文件

# server.xml

UTF-8"/>

# JSP文件

<%@ page pageEncoding="UTF-8" %>

<%@ page contentType="text/html;charset=UTF-8"language="java" %>

<%@ page import="java.sql.*"%>

UTF-8" />`