简单实用工具之Json报文自动转换类
作者：互联网
最近几天在对接其他系统，我们用的是java，其他系统可能不是java。所以在报文格式上有点区别：
收到的报文如下：
{
"id": 27640,
"project_name": "WEB",
"subsystem_name": "WEB",
"pd_fullname2": "WEB",
"app_name": "hotdb管理节点",
"app_cname": "hotdb管理节点",
"app_type": "Mysql",
"app_id": 2584,
"app_owner": "灵",
"maintain_user_name": [
"灵"
],
"ops_user_name": [
"杰",
"旺"
],
"resource_type_name": "物理机",
"resource_env_name": "生产环境",
"status_name": "空闲中",
"os_type_name": "CentOS",
"ip_manage": [
[
4,
"10.99.2.22"
]
],
"update_time": "2021-02-23 15:58",
"change_user_name": "01424191",
"account_manage_id": 3738,
"app": 2584,
"is_ping_name": "Up",
"owner": "002558512",
"maintain_user": "002558512",
"ops_user": "015083912,016303316",
"change_user": "014241911",
"create_time": "2020-03-17T14:43:00.129284",
"host_name": "srvmid1110",
"ip": "10.6.111.122",
"ip_extend": 0,
"resource_type": 1,
"resource_env": 1,
"status": 3,
"os_type": 1,
"os_version": "7.6",
"cpu": 32,
"memory": 251,
"disk": 9217,
"maintainer": "",
"comments": "D",
"is_ping": 1,
"in_reserve": false,
"in_belong": ""
}
而我想要生成实体类是这样的：
private int id;
@JsonProperty("project_name")
private String projectName;
@JsonProperty("subsystem_name")
private String subsystemName;
@JsonProperty("pd_fullname2")
private String pdFullname2;
@JsonProperty("app_name")
private String appName;
@JsonProperty("app_cname")
private String appCname;
@JsonProperty("app_type")
private String appType;
@JsonProperty("app_id")
private int appId;
@JsonProperty("app_owner")
private String appOwner;
@JsonProperty("maintain_user_name")
private List<Object> maintainUserName;
@JsonProperty("ops_user_name")
private List<Object> opsUserName;
@JsonProperty("resource_type_name")
private String resourceTypeName;
@JsonProperty("resource_env_name")
private String resourceEnvName;
@JsonProperty("status_name")
private String statusName;
@JsonProperty("os_type_name")
private String osTypeName;
@JsonProperty("ip_manage")
private List<Object> ipManage;
@JsonProperty("update_time")
private String updateTime;
@JsonProperty("change_user_name")
private String changeUserName;
@JsonProperty("account_manage_id")
private int accountManageId;
private int app;
@JsonProperty("is_ping_name")
private String isPingName;
private String owner;
@JsonProperty("maintain_user")
private String maintainUser;
@JsonProperty("ops_user")
private String opsUser;
@JsonProperty("change_user")
private String changeUser;
@JsonProperty("create_time")
private String createTime;
@JsonProperty("host_name")
private String hostName;
private String ip;
@JsonProperty("ip_extend")
private int ipExtend;
@JsonProperty("resource_type")
private int resourceType;
@JsonProperty("resource_env")
private int resourceEnv;
private int status;
@JsonProperty("os_type")
private int osType;
@JsonProperty("os_version")
private String osVersion;
private int cpu;
private int memory;
private int disk;
private String maintainer;
private String comments;
@JsonProperty("is_ping")
private int isPing;
@JsonProperty("in_reserve")
@JsonProperty("in_belong")
private String inBelong;
于是就顺手写了个生成类：
package com.yt.study.utils;
import java.util.List;
import java.util.Map;
public class GenerateCode {
public String generate(String json) {
StringBuffer sb = new StringBuffer();
String prefix = "private ";
Map<String, Object> map = JacksonUtil.from(json, Map.class);
map.forEach((k, v) -> {
String result = "";
String[] words = k.split("_");
for (int i = 0; i < words.length; i++) {
if (i == 0) {
result += words[i];
} else {
String c = toUpperFirstCase(words[i]);
result += c;
}
}
if (words.length > 1) {
sb.append("@JsonProperty(\"" + k + "\")\n");
}
if (v instanceof Integer) {
sb.append(prefix + "int " + result + ";\n");
}
if (v instanceof List) {
sb.append(prefix + "List<Object> " + result + ";\n");
}
if (v instanceof String) {
sb.append(prefix + "String " + result + ";\n");
}
if (v == null) {
sb.append(prefix + "String " + result + ";\n");
}
});
return sb.toString();
}
public String toUpperFirstCase(String c) {
char[] chars = c.toCharArray();
String s = "";
for (int i = 0; i < chars.length; i++) {
if (i == 0) {
String s1 = chars[0] + "";
s1 = s1.toUpperCase();
s = s1;
} else {
s = s + chars[i];
}
}
return s;
}
}
package com.yt.study;
import com.yt.study.utils.GenerateCode;
public class JsonGenerateCode {
public static void main(String[] args) {
GenerateCode generateCode = new GenerateCode();
String json = " {\n" +
"\t\"id\": 27640,\n" +
" \"project_name\": \"WEB\",\n" +
" \"subsystem_name\": \"WEB\",\n" +
" \"pd_fullname2\": \"WEB\",\n" +
" \"app_name\": \"hotdb管理节点\",\n" +
" \"app_cname\": \"hotdb管理节点\",\n" +
" \"app_type\": \"Mysql\",\n" +
" \"app_id\": 2584,\n" +
" \"app_owner\": \"灵\",\n" +
" \"maintain_user_name\": [\n" +
" \"灵\"\n" +
" ],\n" +
" \"ops_user_name\": [\n" +
" \"杰\",\n" +
" \"旺\"\n" +
" ],\n" +
" \"resource_type_name\": \"物理机\",\n" +
" \"resource_env_name\": \"生产环境\",\n" +
" \"status_name\": \"空闲中\",\n" +
" \"os_type_name\": \"CentOS\",\n" +
" \"ip_manage\": [\n" +
" [\n" +
" 4,\n" +
" \"10.99.2.22\"\n" +
" ]\n" +
" ],\n" +
" \"update_time\": \"2021-02-23 15:58\",\n" +
" \"change_user_name\": \"01424191\",\n" +
" \"account_manage_id\": 3738,\n" +
" \"app\": 2584,\n" +
" \"is_ping_name\": \"Up\",\n" +
" \"owner\": \"002558512\",\n" +
" \"maintain_user\": \"002558512\",\n" +
" \"ops_user\": \"015083912,016303316\",\n" +
" \"change_user\": \"014241911\",\n" +
" \"create_time\": \"2020-03-17T14:43:00.129284\",\n" +
" \"host_name\": \"srvmid1110\",\n" +
" \"ip\": \"10.6.111.122\",\n" +
" \"ip_extend\": 0,\n" +
" \"resource_type\": 1,\n" +
" \"resource_env\": 1,\n" +
" \"status\": 3,\n" +
" \"os_type\": 1,\n" +
" \"os_version\": \"7.6\",\n" +
" \"cpu\": 32,\n" +
" \"memory\": 251,\n" +
" \"disk\": 9217,\n" +
" \"maintainer\": \"\",\n" +
" \"comments\": \"D\",\n" +
" \"is_ping\": 1,\n" +
" \"in_reserve\": false,\n" +
" \"in_belong\": \"\"\n" +
"}";
String generate = generateCode.generate(json);
System.err.println(generate);
}
}
方便自己下次使用。
运行结果如图：
标签：JsonProperty,name,实用工具,private,Json,user,app,报文,String 来源： https://blog.csdn.net/u012663412/article/details/120302808