Methods for converting JSON strings directly into objects in Java (including multilayer list collections) _java

Classes to use: Net.sf.json.JSONObject

When using JSON, In addition to importing the Json-lib-2.2-jdk15.jar packages downloaded above the JSON Web site, you must have several other dependent packages: Commons-beanutils.jar,commons-httpclient.jar,commons-lang.jar,ezmor Ph.jar,morph-1.0.1.jar

Here is the example code:

JSON conversion
Jsonobject jsonobj = Jsonobject.fromobject (jsonstrbody);

map<string, class> classmap = new hashmap<string, class> ();
Classmap.put ("Results", weatherbean_baidu_city.class);
Classmap.put ("index", weatherbean_baidu_city_index.class); 
Classmap.put ("Weather_data", weatherbean_baidu_city_weatherdata.class); 

Converts JSON to Weatherbean_baidu 
weatherbean_baidu weather = (Weatherbean_baidu) Jsonobject.tobean (Jsonobj, 
Weatherbean_baidu.class, classmap); 
System.out.println (Weather.getresults ());

Several Java class code to use:

 package com.lenovo.conference.entity.vo;
Import java.io.Serializable;

Import java.util.List; /** * Weather Bean * * @author shanhy */@SuppressWarnings ("Serial") public class Weatherbean_baidu implements Serializ Able {private String error;//error number private string status;//status value private string date;//date private List<weatherbean_ba
	idu_city> results;//City Weather Forecast collection (because multiple cities can be queried at one time) public Weatherbean_baidu () {super ();
	Public String GetError () {return error;
	public void SetError (String error) {this.error = error;
	Public String GetStatus () {return status;
	public void SetStatus (String status) {this.status = status;
	Public String GetDate () {return date;
	public void setdate (String date) {this.date = date;
	Public list<weatherbean_baidu_city> GetResults () {return results;
	public void SetResults (list<weatherbean_baidu_city> results) {this.results = results; }

}

Package com.lenovo.conference.entity.vo;
Import java.io.Serializable;

Import java.util.List; /** * Weather Bean * * @author shanhy */@SuppressWarnings ("Serial") public class Weatherbean_baidu_city implements Ser ializable {private string currentcity;//city name private string pm25;//pm2.5 value private List<weatherbean_baidu_city_inde X> index;//Index Collection private list<weatherbean_baidu_city_weatherdata> weather_data;//days of the weather set public weatherbean_
	Baidu_city () {super ();
	Public String getcurrentcity () {return currentcity;
	} public void Setcurrentcity (String currentcity) {this.currentcity = currentcity;
	Public String GetPm25 () {return pm25;
	} public void SetPm25 (String pm25) {this.pm25 = PM25;
	Public list<weatherbean_baidu_city_index> GetIndex () {return Index;
	public void Setindex (list<weatherbean_baidu_city_index> index) {this.index = index;
		Public list<weatherbean_baidu_city_weatherdata> Getweather_data () {return weather_data; } public void Setweather_data (list<weatherbean_baidu_city_weatherdata> weather_data) {this.weather_data = W
	Eather_data;
 }

}

Package com.lenovo.conference.entity.vo;

Import java.io.Serializable; /** * Weather Bean * * * @author Shanhy */@SuppressWarnings ("Serial") public class Weatherbean_baidu_city_weatherdata IM Plements Serializable {private string date;//date private string daypictureurl;//daytime weather picture private string Nightpictureu rl;//Evening Weather Picture private string weather;//weather private string wind;//wind direction private string temperature;//temperature public Weatherb
	Ean_baidu_city_weatherdata () {super ();
	Public String GetDate () {return date;
	public void setdate (String date) {this.date = date;
	Public String Getdaypictureurl () {return daypictureurl;
	} public void Setdaypictureurl (String daypictureurl) {this.daypictureurl = Daypictureurl;
	Public String Getnightpictureurl () {return nightpictureurl;
	} public void Setnightpictureurl (String nightpictureurl) {this.nightpictureurl = Nightpictureurl;
	Public String GetWeather () {return weather; } public void Setweather (STring weather) {This.weather = weather;
	Public String Getwind () {return wind;
	public void Setwind (String wind) {this.wind = wind;
	Public String Gettemperature () {return temperature;
	} public void Settemperature (String temperature) {this.temperature = temperature;
 }

}

Package com.lenovo.conference.entity.vo;

Import java.io.Serializable;

/**
 * Weather Bean
 * * 
 @author shanhy
 * 
 *
/@SuppressWarnings ("Serial") Public
class Weatherbean_baidu_city_index implements Serializable {

	private string title;//title
	private string zs;//comfort
	private String tipt;//index
	Summary private string des;//exponent Overview public

	Weatherbean_baidu_city_index () {
		Super ();
	}

	Public String GetTitle () {return
		title;
	}

	public void Settitle (String title) {
		this.title = title;
	}

	Public String Getzs () {return
		zs;
	}

	public void Setzs (String zs) {
		This.zs = ZS;
	}

	Public String Gettipt () {return
		tipt;
	}

	public void Settipt (String tipt) {
		this.tipt = tipt;
	}

	Public String Getdes () {return
		des;
	}

	public void Setdes (String des) {
		this.des = des;
	}

}

Parse the corresponding JSON string in the example

{"Error": 0, "status": "Success", "date": "2015-01-15", "results": [{"currentcity": "Nanjing", "PM25": "The", "index": [{"title"] : "Dressing", "ZS": "Cooler", "tipt": "Dressing Index", "des": "suggest a thick coat and sweater and other clothing." The frail and infirm are suitable for coats, coats and sweaters. "},{" "title": "Car Wash", "ZS": "More Appropriate", "Tipt": "Car Wash Index", "des": "more suitable for car wash, the next day without rain, wind small, scrub a new car can maintain at least one day." "},{" "title": "Tourism", "ZS": "Appropriate", "Tipt": "Tourism Index", "des": "The weather is better, the temperature is slightly lower, will feel a little cooler, but also a good weather oh." Suitable for tourism, but do not miss the opportunity yo! "},{" title: "Cold", "ZS": "Less Hair", "tipt": "Cold Index", "des": "The meteorological conditions appropriate, no obvious cooling process, the incidence of cold is lower." "},{" title ":" Sports "," ZS ":" More Unfavorable "," Tipt ":" Sports Index "," des ":" Cloudy, and the cold weather, recommended that you do low intensity indoor sports, if you insist on outdoor sports, please choose the right sports and attention to keep warm. " "},{" title: "Ultraviolet Intensity", "ZS": "Weakest", "tipt": "UV Intensity Index", "des": "is a weak ultraviolet radiation weather, no special protection." If the long-term outdoors, it is recommended to rub SPF between 8-12 sunscreen skin care products. "}]," Weather_data ": [{" Date ":" Thursday January 15 (Real-time: 6 ℃) "," Daypictureurl ":" Yun_qi_img/yin.png "," Nightpictureurl ":" Yun_qi_ Img/duoyun.png "," Weather ":" Overcast to Cloudy "," Wind ":" North Breeze "," Temperature ":" 8 ~ 4 ℃ "},{" date ":" Friday "," Daypictureurl ":" yun_qi_img/ Duoyun.png "," Nightpictureurl ":" Yun_qi_img/qing.png "," Weather ":" Cloudy Turn Fine "," Wind ":" Northwest Wind 3-4 "," Temperature ":" 12 ~ 0 ℃ "},{ "Date": "Saturday", "Daypictureurl": "YUN_QI_IMG/QING.PNg "," Nightpictureurl ":" Yun_qi_img/duoyun.png "," Weather ":" Clear to Cloudy "," Wind ":" The Northeast 3-4 level "," Temperature ":" 8 ~ 0 ℃ "},{" date ": "Sunday", "Daypictureurl": "Yun_qi_img/qing.png", "Nightpictureurl": "Yun_qi_img/qing.png", "Weather": "Clear", "wind": "Westerly Breeze" , "Temperature": "10 ~ -1℃"}]},{"" currentcity ":" Xuzhou "," PM25 ":" 154 "," index ": [{" title ":" Dress "," ZS ":" Colder "," tipt ":" Clothing Index "," Des ":" suggest a thick coat and sweater and other clothing. The frail and infirm are suitable for coats, coats and sweaters. "},{" "title": "Car Wash", "ZS": "More Appropriate", "Tipt": "Car Wash Index", "des": "more suitable for car wash, the next day without rain, wind small, scrub a new car can maintain at least one day." "},{" "title": "Tourism", "ZS": "Appropriate", "Tipt": "Tourism Index", "des": "The weather is better, but the slightest will not affect your mood to travel." The temperature is suitable and has the breeze accompanying, is suitable for traveling. "},{" title ":" Cold "," ZS ":" More prone to hair "," tipt ":" Cold Index "," des ":" cooler weather, more prone to colds, please increase the appropriate clothing. " Weak friends should pay special attention to protection. "},{" title: "Sports", "ZS": "More Unfavorable", "Tipt": "Sports Index", "des": "The weather is better, but consider the cold weather, recommend you to carry out a variety of indoor sports, if in outdoor sports please pay attention to keep warm and prepare activities." "},{" title: "Ultraviolet Intensity", "ZS": "Weakest", "tipt": "UV Intensity Index", "des": "is a weak ultraviolet radiation weather, no special protection." If the long-term outdoors, it is recommended to rub SPF between 8-12 sunscreen skin care products. "}]," Weather_data ": [{" Date ":" Thursday January 15 (Real-time: 6 ℃) "," Daypictureurl ":" Yun_qi_img/duoyun.png "," Nightpictureurl ":" Yun_ Qi_img/duoyun.png "," Weather ":" Cloudy "," Wind ":" Southerly Breeze "," Temperature ":" 10 ~ 3 ℃ "},{" datE ":" Friday "," Daypictureurl ":" Yun_qi_img/duoyun.png "," Nightpictureurl ":" Yun_qi_img/duoyun.png "," Weather ":" Cloudy "," wind ":" The North wind 3-4 level "," Temperature ":" 11 ~ -4℃ "},{" date ":" Saturday "," Daypictureurl ":" Yun_qi_img/duoyun.png "," Nightpictureurl ":" Yun _qi_img/duoyun.png "," Weather ":" Cloudy "," Wind ":" Dongfeng Breeze "," Temperature ":" 6 ~ -4℃ "},{" date ":" Sunday "," Daypictureurl ":" Yun_qi_ Img/duoyun.png "," Nightpictureurl ":" Yun_qi_img/duoyun.png "," Weather ":" Cloudy "," Wind ":" Westerly level 3-4 "," Temperature ":" 11 ~ 1 ℃ "}]}]}

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