mech post给出了内部服务器错误

Question

我有以下curl命令可以使用。

curl -X POST -H“Content-Type：application / json”-H“username：” - H“password：” - data'{“serviceName”：“FIND_CHNGE”，“keyValues”：{“taskId “：”CHNGE17110462“，”网站“：”测试“}}'http://traceqa.vip.qa.ebay.com/arsys/rest/service/findTicket

然而，当我转换为mech获取内部服务器错误，无法发布。

#!/usr/bin/env perl
use warnings;
use strict;

use URI::Escape;

use lib './lib';
use Utils::PipeJSON;
use Data::Dumper;

use IO::CaptureOutput qw/capture_exec/;
use JSON;
use WWW::Mechanize;

my %output;
my $mech = WWW::Mechanize->new(keep_alive=>1);
$mech->ssl_opts(verify_hostname => 0)

my $resp;
my $issueurl = "http://traceqa.vip.qa.ebay.com/arsys/rest/service/findTicket";
my $json1 = '{"serviceName:"FIND_CHNGE","keyValues":{"taskId":"CHNGE17110462","site":"test"}}';

print STDERR "$json1";
$mech->add_header( 'username' => '<username>' );
$mech->add_header( 'password' => '<password>' );
$mech->add_header( 'Content-Type' => 'application/json' );
eval {
  $resp = $mech->post($issueurl, Content=>$json1, "Content-type" => 'application/json');
  };

请帮忙看看可能出现什么问题？