acl/lib_acl_cpp/samples/json/json3/json.cpp

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#include "stdafx.h"
/**
* 测试json解析器对于制表符解析问题\t \n等
*/
int main()
{
const char* type = "set";
const char* tablename = "\txmailuser";
const char* name = " chenzhen";
printf(">>>>{%s}\r\n", tablename);
acl::json json;
acl::json_node& first = json.get_root().add_child(false, true);
first.add_text("type", type);
first.add_text("tablename", tablename);
first.add_text("name", name);
// 生成json字符串
printf("json to string:%s\r\n", json.to_string().c_str());
printf("first json node to string: %s\r\n", first.to_string().c_str());
acl::string buf;
json.build_json(buf);
// 根据生成的字符串获取键值
acl::json json2(first);
acl::json_node* root2 = &json2.get_root();
acl::json_node* child = root2->first_child();
printf(">>>json2: %s|%s\r\n", json2.to_string().c_str(), buf.c_str());
const char* tag, *txt;
while (child != NULL)
{
if ((tag = child->tag_name()) != NULL && *tag != 0
&& (txt = child->get_text()) != NULL && *txt != 0)
{
printf("tag: %s, txt: %s\n", tag, txt);
}
else
printf("no tag name or no txt in json node");
child = root2->next_child();
}
printf("\r\n");
/////////////////////////////////////
const char* sss = "{\"DataKey\": \"BindRule\", \"DataValue\": {\"waittime\": \"7\"}, \"null_key\": null}";
acl::json json3(sss);
const char* tags = "DataValue";
printf("----------------------------------------------------\r\n");
printf(">>%s\r\n", sss);
acl::json_node* iter = json3.first_node();
while (iter)
{
tag = iter->tag_name();
txt = iter->get_text();
printf("tag: %s, txt: %s\r\n", tag ? tag : "null", txt ? txt : "null");
if (txt)
iter->set_text("hello");
printf("tag: %s, txt: %s\r\n", tag ? tag : "null", txt ? txt : "null");
iter = json3.next_node();
}
printf("----------------------------------------------------\r\n");
const std::vector<acl::json_node*>& nodes = json3.getElementsByTags(tags);
if (nodes.empty() == false)
{
printf(">>>%s\r\n", nodes[0]->to_string().c_str());
}
return 0;
}