Class GB2UTF8 v2.0.1

 
http://www.chinaunix.net 作者:HonestQiao  发表于:2003-08-01 18:27:21

gb2utf8.php 文件如下:

     [code:1:fd411e991d]
<?
Class GB2UTF8
{
var $gb;          // 待转换的GB2312字符串
var $utf8;        // 转换后的UTF8字符串
    var $CodeTable;   // 转换过程中使用的GB2312代码文件数组
    var $ErrorMsg;    // 转换过程之中的错误讯息

function GB2UTF8($InStr="")
{
$this->gb=$InStr;
$this->SetGb2312();
($this->gb=="")?0:$this->Convert();
}

function SetGb2312($InStr="gb2312.txt")
{                  // 设置gb2312代码文件,默认为gb2312.txt
$this->ErrorMsg="";
$tmp=@file($InStr);
        if (!$tmp) {
            $this->ErrorMsg="No GB2312";
            return false;
            }
$this->CodeTable=array();
while(list($key,$value)=each($tmp)) {
$this->CodeTable[hexdec(substr($value,0,6))]=substr($value,7,6);
}
}
 
function Convert()
{                   // 转换GB2312字符串到UTF8字符串,需预先设置$gb
$this->utf8="";
if(!trim($this->gb) || $this->ErrorMsg!="") {
return ($this->utf8=$this->ErrorMsg);
}
        $str=$this->gb;

while($str) {
if (ord(substr($str,0,1))>127)
{
$tmp=substr($str,0,2);
$str=substr($str,2,strlen($str));
$tmp=$this->U2UTF8(hexdec($this->CodeTable[hexdec(bin2hex($tmp))-0x8080]));
for($i=0;$i<strlen ($tmp);$i+=3)
$this->utf8.=chr(substr($tmp,$i,3));
}
else
{
$tmp=substr($str,0,1);
$str=substr($str,1,strlen($str));
$this->utf8.=$tmp;
}
}
return $this->utf8;
}


function U2UTF8($InStr)
{
for($i=0;$i<count($InStr);$i++)
$str="";
if ($InStr < 0x80) {
$str.=ord($InStr);
}
else if ($InStr < 0x800) {
$str.=(0xC0 | $InStr>>6);
$str.=(0x80 | $InStr & 0x3F);
}
else if ($InStr < 0x10000) {
$str.=(0xE0 | $InStr>>12);
$str.=(0x80 | $InStr>>6 & 0x3F);
$str.=(0x80 | $InStr & 0x3F);
}
else if ($InStr < 0x200000) {
$str.=(0xF0 | $InStr>>18);
$str.=(0x80 | $InStr>>12 & 0x3F);
$str.=(0x80 | $InStr>>6 & 0x3F);
$str.=(0x80 | $InStr & 0x3F);
}
return $str;
}
}
?>
[/code:1:fd411e991d]

测试文件如下:
[code:1:fd411e991d]
<?php
Header("Content-type: image/png");
$im = imagecreate(400,300);
$black = ImageColorAllocate($im, 0,0,0);
$white = ImageColorAllocate($im, 184,44,6);
include("gb2utf8.php");
$obj=new gb2utf8();
$obj->gb="123abc中国456def测试正确";
$obj->Convert();
ImageTTFText($im, 20, 0, 5, 50, $white, "SIMKAI.TTF", $obj->utf8);
ImagePNG($im);
ImageDestroy($im);
?>
[/code:1:fd411e991d]

说明:
需要正确设置font文件,请先确认可以使用font直接(不使用gb2utf8)输出英文。
gb2312.txt请在网上查找
 
 

好的,下面是Spring Boot 2整合MyBatis的步骤: 1. 首先,在pom.xml文件中添加以下依赖: ``` <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>2.0.1</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.47</version> </dependency> </dependencies> ``` 2. 在application.properties文件中配置数据库连接信息: ``` spring.datasource.driver-class-name=com.mysql.jdbc.Driver spring.datasource.url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8&useSSL=false spring.datasource.username=root spring.datasource.password=root ``` 3. 创建MyBatis的Mapper接口和SQL映射文件: Mapper接口: ``` public interface UserMapper { User getUserById(int id); } ``` SQL映射文件(resources/mapper/UserMapper.xml): ``` <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="com.example.demo.mapper.UserMapper"> <select id="getUserById" parameterType="int" resultType="com.example.demo.entity.User"> select * from user where id = #{id} </select> </mapper> ``` 4. 创建User实体类: ``` public class User { private int id; private String name; private int age; // 省略getter和setter方法 } ``` 5. 在Spring Boot的启动类上添加@MapperScan注解,扫描Mapper接口: ``` @SpringBootApplication @MapperScan("com.example.demo.mapper") public class DemoApplication { public static void main(String[] args) { SpringApplication.run(DemoApplication.class, args); } } ``` 6. 在Service中使用Mapper: ``` @Service public class UserService { @Autowired private UserMapper userMapper; public User getUserById(int id) { return userMapper.getUserById(id); } } ``` 这样,一个简单的Spring Boot 2整合MyBatis的项目就完成了。
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