java怎么将json字符串转化为对象数组 java中把json怎么转换成数组？
java\u4e2d\u600e\u4e48\u628a\u5b57\u7b26\u4e32\u8f6c\u5316\u4e3a\u5b57\u7b26\u4e32\u6570\u7ec4\uff1f1\uff0c
\u5982\u679c\u662f \u201c\u5b57\u7b26\u4e32\u6570\u7ec4\u201d \u8f6c \u201c\u5b57\u7b26\u4e32\u201d\uff0c\u53ea\u80fd\u901a\u8fc7\u5faa\u73af\uff0c\u6ca1\u6709\u5176\u5b83\u65b9\u6cd5 String[] str = {"abc", "bcd", "def"};StringBuffer sb = new StringBuffer();for(int i = 0; i < str.length; i++){sb. append(str[i]);}String s = sb.toString();2\uff0c
\u5982\u679c\u662f \u201c\u5b57\u7b26\u6570\u7ec4\u201d \u8f6c \u201c\u5b57\u7b26\u4e32\u201d \u53ef\u4ee5\u901a\u8fc7\u4e0b\u8fb9\u7684\u65b9\u6cd5 char[] data={'a','b','c'}; String s=new String(data);
3\uff0c
\u4f7f\u7528StringUtils\u4e2d\u7684join\u51fd\u6570\u3002org.apache.commons.lang.StringUtils;
4\uff0c
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5\uff0c
StringUtils.join(str)
// \u5c06\u6570\u7ec4\u7528\u9017\u53f7\u5206\u9694\u53d8\u6210\u5b57\u7b26\u4e32
StringUtils.join(str, ",")
\u5c06\u5b57\u7b26\u4e32\u53d8\u6210\u6570\u7ec4\u65b9\u6cd5\uff1a
java.lang\u5305\u4e2d\u6709String.split()\u65b9\u6cd5,java\u4e2d\u901a\u5e38\u7528split()\u5206\u5272\u5b57\u7b26\u4e32\uff0c\u8fd4\u56de\u7684\u662f\u4e00\u4e2a\u6570\u7ec4\u3002
\u7279\u6b8a\uff0c\u8f6c\u4e49\u5b57\u7b26\uff0c\u5fc5\u987b\u52a0"\\"\uff08\u201c.\u201d\u548c\u201c|\u201d\u90fd\u662f\u8f6c\u4e49\u5b57\u7b26\uff09
1\uff0c\u5728Java\u8bed\u8a00\u7f16\u7a0b\u65f6\uff0c\u4f7f\u7528\u201c\u53e3\u4ee4\u5b57\u6bb5\u201cjPasswordField\u7ec4\u4ef6\u65f6\uff0c\u5982\u679c\u8981\u83b7\u5f97\u5bc6\u7801\u503c\uff0c\u5c31\u9700\u8981\u4f7f\u7528\u8be5\u7ec4\u4ef6\u7684getPassword()\u65b9\u6cd5,
2\uff0cjPasswordField\u7684getPassword()\u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2achar\u7c7b\u578b\u7684\u6570\u7ec4\uff0c\u6211\u4eec\u7ecf\u5e38\u9700\u8981\u5c06\u8fd9\u4e2a\u6570\u7ec4\u8f6c\u6362\u4e3aString\u7c7b\u578b\uff0c\u4ee5\u4fbf\u8fdb\u884c\u8bf8\u5982\u53e3\u4ee4\u5339\u914d\u6216\u53e3\u4ee4\u8d4b\u503c\u7b49\u64cd\u4f5c\u3002
3\uff0c\u8fd9\u65f6\uff0c\u5c31\u9700\u8981\u5c06char\u7c7b\u578b\u7684\u6570\u7ec4\u8fdb\u884c\u8f6c\u6362\u3002\u5f53\u7136\u4e5f\u7ecf\u5e38\u4f1a\u9047\u5230\u5c06String\u7c7b\u578b\u8f6c\u6362\u4e3achar\u6570\u7ec4\u7684\u60c5\u51b5\u3002
\u4f7f\u7528\u539f\u751f\u7684\u89e3\u6790\uff1a
String json = "...";
//\u904d\u5386\u6570\u7ec4\u91cc\u7684\u503c\uff0c\u5f97\u5230\u6bcf\u4e2a\u72ec\u7acb\u7684\u5bf9\u8c61\uff0c\u7136\u540e\u83b7\u53d6\u5bf9\u5e94\u7684\u503c\u8bbe\u7f6e\u5230\u58f0\u660e\u597d\u7684\u5bf9\u8c61\u4e2d\uff0c\u6700\u7ec8\u521b\u5efa\u5bf9\u8c61\u5b8c\u6210\u540e\u6dfb\u52a0\u5230\u96c6\u5408\u4e2d\uff0c\u5982\u6211\u81ea\u5df1\u4ee3\u7801\u91cc\u7684\u7247\u6bb5:
for (int j = 0; j < array.length(); j++) {
obj = array.getJSONObject(j);
Data data = new Data();
mDataList.add(data);
}
\u6570\u7ec4\u58f0\u660e
\u5728\u6570\u7ec4\u7684\u58f0\u660e\u683c\u5f0f\u91cc\uff0c\u201c\u6570\u636e\u7c7b\u578b\u201d\u662f\u58f0\u660e\u6570\u7ec4\u5143\u7d20\u7684\u6570\u636e\u7c7b\u578b\uff0c\u53ef\u4ee5\u662fjava\u8bed\u8a00\u4e2d\u4efb\u610f\u7684\u6570\u636e\u7c7b\u578b\uff0c\u5305\u62ec\u7b80\u5355\u7c7b\u578b\u548c\u7ed3\u6784\u7c7b\u578b\u3002\u201c\u6570\u7ec4\u540d\u201d\u662f\u7528\u6765\u7edf\u4e00\u8fd9\u4e9b\u76f8\u540c\u6570\u636e\u7c7b\u578b\u7684\u540d\u79f0\uff0c\u5176\u547d\u540d\u89c4\u5219\u548c\u53d8\u91cf\u7684\u547d\u540d\u89c4\u5219\u76f8\u540c\u3002
\u6570\u7ec4\u58f0\u660e\u4e4b\u540e\uff0c\u63a5\u4e0b\u6765\u4fbf\u662f\u8981\u5206\u914d\u6570\u7ec4\u6240\u9700\u8981\u7684\u5185\u5b58\uff0c\u8fd9\u65f6\u5fc5\u987b\u7528\u8fd0\u7b97\u7b26new\uff0c\u5176\u4e2d\u201c\u4e2a\u6570\u201d\u662f\u544a\u8bc9\u7f16\u8bd1\u5668\uff0c\u6240\u58f0\u660e\u7684\u6570\u7ec4\u8981\u5b58\u653e\u591a\u5c11\u4e2a\u5143\u7d20\uff0c\u6240\u4ee5new\u8fd0\u7b97\u7b26\u662f\u901a\u77e5\u7f16\u8bd1\u5668\u6839\u636e\u62ec\u53f7\u91cc\u7684\u4e2a\u6570\uff0c\u5728\u5185\u5b58\u4e2d\u5206\u914d\u4e00\u5757\u7a7a\u95f4\u4f9b\u8be5\u6570\u7ec4\u4f7f\u7528\u3002\u5229\u7528new\u8fd0\u7b97\u7b26\u4e3a\u6570\u7ec4\u5143\u7d20\u5206\u914d\u5185\u5b58\u7a7a\u95f4\u7684\u65b9\u5f0f\u79f0\u4e3a\u52a8\u6001\u5206\u914d\u65b9\u5f0f\u3002
\u4ee5\u4e0a\u5185\u5bb9\u53c2\u8003\uff1a\u767e\u5ea6\u767e\u79d1-\u6570\u7ec4
1、使用原生的解析：
String json = "...";
JSONArray array= new JSONArray(json);
//遍历数组里的值，得到每个独立的对象，然后获取对应的值设置到声明好的对象中，最终创建对象完成后添加到集合中，如我自己代码里的片段:
for (int j = 0; j < array.length(); j++) {
obj = array.getJSONObject(j);
Data data = new Data();
data.setThumbnail(obj.getString("thumbnail"));
data.setTitle(obj.getString("title"));
data.setUrl(obj.getString("url"));
mDataList.add(data);
}
2、使用第三方包如Gson，但是这个你得保证你的JSON字符串个z
绛旓細1銆佷娇鐢↗ackson搴擄細import com.fasterxml.jackson.databind.JsonNode;import com.fasterxml.jackson.databind.ObjectMapper;public class Main { public static void main(String[] args) throws Exception { // JSON瀛楃涓 String jsonString = "{\"name\":\"John\",\"...
绛旓細浣跨敤json-lib.jar杩欎釜宸ュ叿\x0d\x0apublic String getJson(Object obj){\x0d\x0a JSONObject json;\x0d\x0a json = JSONObject.fromObject(obj);\x0d\x0a return json.toString();\x0d\x0a}\x0d\x0a浣跨敤jquery鏉ュ鐞唈son\x0d\x0a//杞崲涓簀son鏁版嵁 datas鍙互鐢╝jax...
绛旓細寮曠敤涓夋柟jar鍖 jsonlib
绛旓細org.json.jsonobject 鍘讳笅涓涓繖涓猨ar鍖呭惂銆傛槸涓撶敤澶勭悊json瀛楃涓鐨勩備綘鐨勮繖涓渶姹傚鏋滃璞″崟涓瀹屾垚鍙互鍗婅嚜鍔ㄥ寲瀹屾垚銆俲sonobject json = new jsonobject(json瀛楃涓);if(json.has("浣犺瑙ｆ瀽鐨刯son鏄惁瀛樺湪")){ //...鍒涘缓浣犵殑瀵硅薄銆//...瑙ｆ瀽鍊煎苟璧嬪肩粰浣犵殑瀵硅薄 } 濡傛灉瑕佸疄鐜板畬鎴愯嚜鍔ㄨВ鏋愬氨寰...
绛旓細浣跨敤鍘熺敓鐨勮В鏋愶細String json = "...";//閬嶅巻鏁扮粍閲岀殑鍊硷紝寰楀埌姣忎釜鐙珛鐨勫璞★紝鐒跺悗鑾峰彇瀵瑰簲鐨勫艰缃埌澹版槑濂界殑瀵硅薄涓紝鏈缁堝垱寤哄璞″畬鎴愬悗娣诲姞鍒伴泦鍚堜腑锛屽鎴戣嚜宸变唬鐮侀噷鐨勭墖娈:for (int j = 0; j < array.length(); j++) { obj = array.getJSONObject(j);Data data = new Data();m...
绛旓細鎮ㄥソ锛岄壌浜庢闂锛屾垜灏嗘彁渚涙偍濡備笅鐨勮В鍐虫柟妗堬細1銆侀鍏堬紝鍔犲叆濡備笅 jar 鏂囦欢鍒板伐绋嬩腑锛2銆佺紪鍐 java 浠ｇ爜锛岃繘琛json 鏁版嵁鐨杞崲 3銆佹帶鍒跺彴杈撳嚭缁撴灉濡備笅鎵绀猴細{"age":90,"houses":[],"id":1,"name":"liNing"} User [age=90, houses=[], id=1, name=liiNing]...
绛旓細瑕佷娇绋嬪簭鍙互杩愯蹇呴』寮曞叆JSON-lib鍖咃紝JSON-lib鍖呭悓鏃朵緷璧栦簬浠ヤ笅鐨凧AR鍖咃細1.commons-lang.jar 2.commons-beanutils.jar 3.commons-collections.jar 4.commons-logging.jar 5.ezmorph.jar 6.json-lib-2.2.2-jdk15.jar
绛旓細import java.util.Map;/ JSON瀛楃涓鑷姩杞崲 Created by zkn on 2016/8/22./ public class JsonToMapTest01 { public static void main(String[] args){ String str = "{\"0\":\"zhangsan\",\"1\":\"lisi\",\"2\":\"wangwu\",\"3\":\"maliu\"}";//绗竴绉嶆柟寮 Map maps =...
绛旓細瑕佸皢string杞崲涓簀sonobject锛屽彲浠ヤ娇鐢ㄥ悇绉嶇紪绋嬭瑷鐨勫唴缃JSON瑙ｆ瀽搴撴垨绗笁鏂瑰簱銆備緥濡傦紝鍦Java涓锛屽彲浠ヤ娇鐢╫rg.json搴擄紱鍦≒ython涓紝鍙互浣跨敤json搴擄紱鍦↗avaScript涓紝鍙互浣跨敤JSON.parse鏂规硶銆傚叿浣撴楠ゆ牴鎹紪绋嬭瑷鏈夋墍涓嶅悓锛屼絾澶ц嚧鎬濊矾鏄皟鐢ㄧ浉搴旇瑷鐨凧SON瑙ｆ瀽鍑芥暟锛屼紶鍏瀛楃涓浣滀负鍙傛暟锛屽嵆鍙緱鍒板搴旂殑json...
绛旓細function formatDate(date,format){ if(!date){ return '';} else if(typeof(date) == "string"){ if("null"==date){ return '';} return date;} else if(typeof(date) == "undefined" || "undefined"==date){ return '';} else if(typeof(date) == "object"){ var year =...
