#include<stdio.h>
#include "/usr/include/iconv.h"



int main()
{
    char src[4096]={0};
    char dest[4096]={0};
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    memcpy(src, peer1_0, sizeof(peer1_0));
    u2g(src, 4096, dest, 4096);
    fputs(dest, stdout);
    return 0;
}

//代码转换:从一种编码转为另一种编码
int code_convert(char *from_charset, char *to_charset, char *inbuf,
         int inlen, char *outbuf, int outlen)
{
   iconv_t cd;
   int rc;
   char **pin = &inbuf;
   char **pout = &outbuf;

   cd = iconv_open(to_charset, from_charset);
   if (cd == 0)
      return -1;
   memset(outbuf, 0, outlen);
   if (iconv(cd, pin, &inlen, pout, &outlen) == -1)
      return -1;
   iconv_close(cd);
   return 0;
}

//UNICODE码转为GB2312码
int u2g(char *inbuf, int inlen, char *outbuf, int outlen)
{
   return code_convert("UTF-8", "GB2312", inbuf, inlen, outbuf, outlen);
}

//GB2312码转为UNICODE码
int g2u(char *inbuf, size_t inlen, char *outbuf, size_t outlen)
{
   return code_convert("gb2312", "utf-8", inbuf, inlen, outbuf, outlen);
}

运行结果：
HTTP/1.1 200 OK
Server: Apache-Coyote/1.1
Content-Type: text/xml;charset=GBK
Transfer-Encoding: chunked
Date: Fri, 11 Nov 2011 11:51:37 GMT

4d2
<?xml version='1.0' encoding='GBK'?><soapenv:Envelope xmlns:soapenv="http://schemas. xmlns:ns="http://ws"><ns:return>&lt;?xml version="1.0" encoding="GBK"?>&lt;xmlmsg>&lt;errmsg>&lt;/errmsg>&lt;vio>&lt;rec>&lt;jkbj_zw>未缴款&lt;/jkbj_zw>&lt;jkbj>0&lt;/jkbj>&lt;jdslb_zw>简易决定书&lt;/jdslb_zw>&lt;jdslb>1&lt;/jdslb>&lt;jdsbh>450200170121232&lt;/jdsbh>&lt;dsr>匡青林&lt;/dsr>&lt;hpzl>02&lt;/hpzl>&lt;hpzl_zw>小型汽车&lt;/hpzl_zw>&lt;hphm>桂BQ9926&lt;/hphm>&lt;jdcsyr>柳州市驰誉汽车运输有限公司&lt;/jdcsyr>&lt;jszh>43042619730820901X&lt;/jszh>&lt;wfsj>2011-01-05 08:27:52&lt;/wfsj>&lt;wfdz>柳邕路0千米0米&lt;/wfdz>&lt;clsj>2011-01-05&lt;/clsj>&lt;cljg>45020400&lt;/cljg>&lt;cljgmc>柳州市公安局交通警察支队柳南大队&lt;/cljgmc>&lt;fkje>100&lt;/fkje>&lt;znj>0&lt;/znj>&lt;/rec>&lt;/vio>&lt;/xmlmsg></ns:return></ns:getvioinfoResponse></soapenv:Body></soapenv:Envelope>
0


谁比较熟悉中文编码转换的，这段代码转换中文失败，（自己也不清楚到底是从什么码转到什么码），反正是要显示中文，谁知道该用哪个函数或者该转成哪个编码的？找了不少方法都成功不了～至于(&lt;) 的问题可以不管，这个是对应符号'<' ，这个已经解决，只是这里没有体现。
补充说明一下，上面能看到中文是浏览器转换的，其实是看不到中文的哦。

[ 本帖最后由 khaz 于 2011-11-11 22:08 编辑 ]

在浏览器中，编码的方式体现在两个地方：
1、http应答中；
2、在html文件中；
如果两个地方同时存在，以html文件中为基准。
取得文件传输编码后，你对照自己的终端能支持哪种字库，相应转换编码显示即可。
从你提供的例子看，源码中使用的编码是GBK，GBK是一种带繁体的泛汉字字库。如果你需要直接看到，建议你转成gb2312编码，国内编辑器默认的编码。
采用那个函数你可以查查，以前我们是自己写的函数，对照码表做到。

有不清楚之处，欢迎讨论。

补充，你这段代码，需要先有个html的解析，解析出来的汉字编码才能转码。汉字的编码有特定的格式，你可以查查。
html解析源码，网上可以找到。
在测试过程中，先用特定汉字的特定编码实验，尽量不要一下子扔进去一个连自己都不懂的大数据。