perl encode_json 会产生 UTF-8 (binary) string decode_json 需要一个 UTF-8 (binary) string

encode_json

    $json_text = encode_json $perl_scalar

Converts the given Perl data structure to a UTF-8 encoded, binary string.

This function call is functionally identical to:

    $json_text = JSON->new->utf8->encode($perl_scalar)

  转换给定的perl数据结构到一个UTF-8编码的,2进制的字符串。

 encode_json 产生一个UTF-8编码的2进制字符

[root@wx03 ~]# cat a15.pl

use JSON qw/encode_json decode_json/ ;

use Encode;

my $data = [

     {

         'name' => 'Ken' ,

         'age' => 19

     },

     {

         'name' => '测试' ,

         'age' => 25

     }

];

my $json_out = encode_json ( $data );

print $json_out;

print "\n";

my $d=decode_utf8($json_out);

print $d;

print "\n";

[root@wx03 ~]# perl a15.pl

[{"age":19,"name":"Ken"},{"age":25,"name":"æµè¯"}]

[{"age":19,"name":"Ken"},{"age":25,"name":"测试"}]

encode_json 会产生一个utf-8的2进制格式

  decode_json

    $perl_scalar = decode_json $json_text

The opposite of encode_json: expects an UTF-8 (binary) string and tries to parse that as an UTF-8 encoded JSON text, returning the resulting reference.

This function call is functionally identical to:

    $perl_scalar = JSON->new->utf8->decode($json_text)

    与encode-接送相反,期望一个UTF-8(2进制)字符串尝试解析一个 UTF-8编码的JSON 文本,

    返回一个结果引用。

  decode_json 必须是unicode形式的字符,是一个UTF-8的2进制字符串

  [root@wx03 ~]# cat a14.pl

use Net::SMTP;

use LWP::UserAgent;

use HTTP::Cookies;

use HTTP::Headers;

use HTTP::Response;

use Encode;

use JSON;

use File::Temp qw/tempfile/;

use HTTP::Date qw(time2iso str2time time2iso time2isoz);

use Data::Dumper;

my $CurrTime = time2iso(time());

my $dis_mainpublish='中均资本';

my $ua = LWP::UserAgent->new;

$ua->timeout(10);

$ua->env_proxy;

my $now          = time();

$ua->agent('Mozilla/5.0');

my $cookie_jar = HTTP::Cookies->new(

    file           => 'lwp_cookies.txt',

    autosave       => 1,

    ignore_discard => 1

);

$ua->cookie_jar($cookie_jar);

my $response = $ua->get("https://www.zjcap.cn/web/noauth?method=%2Fproduct%2Flist&duration=&entryUnit=&productType=1&status=&yield=&productName=&pageNum=1&pageSize=6&_=1468156037154");

if ($response->is_success) {

  $r = $response->decoded_content;

  print "\n";

  }

  else

  {

  die $response->status_line;

  };

my $r=encode_utf8($r);

my $hash = decode_json ( $r );

print "11111111111111111111\n";

#print Dumper($hash);

print "产品列表\n";

print $hash->{data}->{dataList}->[0]->{name};

[root@wx03 ~]# perl a14.pl 

11111111111111111111

产品列表

中均-欧洲杯18号（葡萄牙加时/点球夺冠）[root@wx03 ~]#
巴特西

perl encode_json 会产生 UTF-8 (binary) string decode_json 需要一个 UTF-8 (binary) string

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