mysql+jsp出现乱码如何解决

JSP页面传输到MySQL数据库时,中文为乱码(数据库中存储乱码)。下面我们就来看一下如何解决。

1、将所有的涉及到编码的都设置为 utf8(utf-8)。

设置数据库编码:

命令行执行:mysql> show variables like 'character%'; 可以查看是否为utf8

mysql> show variables like 'character%';

+--------------------------+------------------------------------------------------+

| Variable_name            | Value                                                |

+--------------------------+------------------------------------------------------+

| character_set_client     | utf8                                                 |

| character_set_connection | utf8                                                 |

| character_set_database   | utf8                                                 |

| character_set_filesystem | binary                                               |

| character_set_results    | utf8                                                 |

| character_set_server     | latin1                                               |

| character_set_system     | utf8                                                 |

| character_sets_dir       | D:Program Filesmysql-5.6.20-winx64sharecharsets |

+--------------------------+------------------------------------------------------+

character_set_server项不知道如何设置,不过不影响。修改数据库编码执行命令: mysql> alter database db_name character set utf8; 

修改其他编码: mysql> set names 'utf8';

设置JSP页面编码:在页面顶部添加 

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

修改数据库连接DriverManager.getConnection(url, usr, pwd)的url:

String url = "jdbc:mysql://localhost:3306/db_name?useUnicode=true&characterEncoding=utf-8";

2、post传输方式

在发送页面和接收页面顶部都添加以下代码:

<%  request.setCharacterEncoding("UTF-8"); 

    response.setCharacterEncoding("UTF-8"); 

    response.setContentType("text/html; charset=utf-8");

%>

推荐:MySQL教程

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