mysql+javaWeb+jdbc+tomcat开发中的中文乱码处理

1.修改工作空间编码方式为UTF-8

• window-->properties-->General-->Workspace-->Other-->UTF-8 

2.创建的jsp全部修改为UTF-8

• 修改jsp默认编码方式 window --> preference --> Web --> JSP Files --> Encoding 修改为UTF-8 

3.在doGet()/doPost里面加上以下代码

request.setCharacterEncoding("UTF-8");
response.setContentType("text/html; charset=UTF-8");

4.对于get方式提交到Servlet的数据，中文乱码处理请参照下面示例

String username = request.getParameter("username");
username = new String(username.getBytes("ISO-8859-1"),"UTF-8");

5.mysql乱码处理,在原来的URL后面加上?useUnicode=true&characterEncoding=UTF-8

jdbcUrl=jdbc:mysql://localhos:3306/greadManagert?useUnicode=true&characterEncoding=UTF-8

• 如果在xml中识别不了&符号，要使用实体字符"&amp"加“;”来代替&，即

jdbcUrl=jdbc:mysql://localhos:3306/greadManagert?useUnicode=true&characterEncoding=UTF-8

6.修改tomcat配置文件server.xml,63行，加上URIEncoding="utf-8"

<Connector URIEncoding="utf-8" connectionTimeout="20000" port="8080" protocol="HTTP/1.1" redirectPort="8443"/>

7.配置乱码过滤器

 <!-- 乱码过滤器 -->
  <filter>
    <filter-name>encodingFilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <async-supported>true</async-supported>
    <init-param>
      <param-name>encoding</param-name>
      <param-value>UTF-8</param-value>
    </init-param>
  </filter>
  <filter-mapping>
    <filter-name>encodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>

番外篇：自动提示

• window-->preference-->java-->Editor-->Content Assist-->Auto activation triggers for java,在里面把a--z二十六个字母全输入进去