xml1.zip_XML解析_hillxv2_standardh2k_touchcrq_变电站XML

/**************************************** *练习libxml库，创建通讯录xml文档，新增一个通讯录， *如果xml文件存在，则添加一个新节点 *如果xml文件不存在，则新建一个xml文件 * *@author: Anker @date: 2014/02/09 * ***************************************/ #include <stdio.h> #include <string.h> #include <assert.h> #include <libxml/parser.h> #include <libxml/tree.h> #include <libxml/xmlmemory.h> #define PHONE_BOOK_FILE "phone_book.xml" #define ID_STR_LEN 16 #define NAME_STR_LEN 32 #define TEL_STR_LEN 16 #define ADDR_STR_LEN 128 //电话通讯录结构体 typedef struct phone_t { int id; //编号 char name[NAME_STR_LEN]; //姓名 char tel[TEL_STR_LEN]; //电话 char address[ADDR_STR_LEN]; //地址 }phone; //设置通讯录项 static void set_phone_item(phone *phone_item) { assert(phone_item); phone_item->id = 10; snprintf(phone_item->name, NAME_STR_LEN, "%s", "Anker"); snprintf(phone_item->tel, TEL_STR_LEN, "%s", "13223246599"); snprintf(phone_item->address, ADDR_STR_LEN, "%s", "Shenzheng"); } //创建phone节点 static xmlNodePtr create_phone_node(const phone *phone_item) { assert(phone_item); char id[ID_STR_LEN] = {0}; xmlNodePtr phone_node = NULL; phone_node = xmlNewNode(NULL, BAD_CAST"phone"); if (phone_node == NULL) { fprintf(stderr, "Failed to create new node.\n"); return NULL; } //设置属性 snprintf(id, ID_STR_LEN, "%d", phone_item->id); xmlNewProp(phone_node, BAD_CAST"id", (xmlChar*)id); xmlNewChild(phone_node, NULL, BAD_CAST"name", (xmlChar *)phone_item->name); xmlNewChild(phone_node, NULL, BAD_CAST"tel", (xmlChar *)phone_item->tel); xmlNewChild(phone_node, NULL, BAD_CAST"address", (xmlChar *)phone_item->address); return phone_node; } //向根节点中添加一个phone节点 static int add_phone_node_to_root(xmlNodePtr root_node) { xmlNodePtr phone_node = NULL; phone *phone_item = NULL; //创建一个新的phone phone_item = (phone *)malloc(sizeof(phone)); if (phone_item == NULL) { fprintf(stderr, "Failed to malloc memory.\n"); return -1; } set_phone_item(phone_item); //创建一个phone节点 phone_node = create_phone_node(phone_item); if (phone_node == NULL) { fprintf(stderr, "Failed to create phone node.\n"); goto FAILED; } //根节点添加一个子节点 xmlAddChild(root_node, phone_node); free(phone_item); return 0; FAILED: if (phone_item){ free(phone_item); } return -1; } //创建phone_books static int create_phone_books(const char *phone_book_file) { assert(phone_book_file); xmlDocPtr doc = NULL; xmlNodePtr root_node = NULL; //创建一个xml 文档 doc = xmlNewDoc(BAD_CAST"1.0"); if (doc == NULL) { fprintf(stderr, "Failed to new doc.\n"); return -1; } //创建根节点 root_node = xmlNewNode(NULL, BAD_CAST"phone_books"); if (root_node == NULL) { fprintf(stderr, "Failed to new root node.\n"); goto FAILED; } //将根节点添加到文档中 xmlDocSetRootElement(doc, root_node); if (add_phone_node_to_root(root_node) != 0) { fprintf(stderr, "Failed to add a new phone node.\n"); goto FAILED; } //将文档保存到文件中，按照utf-8编码格式保存 xmlSaveFormatFileEnc(phone_book_file, doc, "UTF-8", 1); //xmlSaveFile("test.xml", doc); xmlFreeDoc(doc); return 0; FAILED: if (doc) { xmlFreeDoc(doc); } return -1; } static int add_phone_node(const char *phone_book_file) { assert(phone_book_file); xmlDocPtr doc = NULL; xmlNodePtr root_node = NULL; xmlNodePtr phone_node = NULL; phone *phone_item = NULL; doc = xmlParseFile(phone_book_file); if (doc == NULL) { fprintf(stderr, "Failed to parser xml file:%s\n", phone_book_file); return -1; } root_node = xmlDocGetRootElement(doc); if (root_node == NULL) { fprintf(stderr, "Failed to get root node.\n"); goto FAILED; } if (add_phone_node_to_root(root_node) != 0) { fprintf(stderr, "Failed to add a new phone node.\n"); goto FAILED; } //将文档保存到文件中，按照utf-8编码格式保存 xmlSaveFormatFileEnc(phone_book_file, doc, "UTF-8", 1); xmlFreeDoc(doc); return 0; FAILED: if (doc) { xmlFreeDoc(doc); } return -1; } int main(int argc, char *argv[]) { char *phone_book_file = PHONE_BOOK_FILE; if (argc == 2) { phone_book_file = argv[1]; } if (access(phone_book_file, F_OK) == 0) { //文件存在，添加一个新的phone节点 add_phone_node(phone_book_file); } else { //文件不存在，创建一个信息的phone book create_phone_books(phone_book_file); } return 0; }