本篇內(nèi)容主要講解“JAVA如何刪除字符串固定下標(biāo)字串”，感興趣的朋友不妨來看看。本文介紹的方法操作簡單快捷，實(shí)用性強(qiáng)。下面就讓小編來帶大家學(xué)習(xí)“JAVA如何刪除字符串固定下標(biāo)字串”吧!
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當(dāng)你拿到的報(bào)文是這樣的
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重慶分公司
{
"input": {
"sdfsn": "23u4209350-2",
"fsfs": "128412094",
"sgsgsg": "15821059",
"inssgsuplc_admdfdfdvs": "125125332",
"dgh": "125215312",
"dfgdfg": "215215",
"sdhdsh": "",
"sdfsn": "",
"shdfshdshdsh": "shsdh",
"sdhdsh": "shsh.0",
"shsdhsd": "1",
"shsdh": "1607",
"input": {
"data": {
"dhfsdhsd": "235325",
"shsdhsdh": "03",
"dgd": "BE0445360",
"dfhfdh": "11",
"dshshsd": 76.56,
"ghjrfgj": "01",
"grjf": "234623626",
"hjfd": "236436",
"djfdfgjdfj": "45634",
"exp_Content": "{"gdsg":"01","gjfj":"658568","fjfj":"5675467","ghfjfgkj":"68568","vmgfvj":"658568","gfhjgfyk":"0","fghkfghkg":"5474567"}",
"dfjgdfj": "",
"dfjdfjgdfj": "56745745",
"dfgjdfgjh": 45756758,
"jdfgjhfdgj": 0,
}
}
},
"output": {
"output": {
"r757": {
"dhfsdhsd": "235325",
"shsdhsdh": "03",
"dgd": "BE0445360",
"dfhfdh": "11",
"dshshsd": 76.56,
"ghjrfgj": "01",
"grjf": "234623626",
"hjfd": "236436",
"djfdfgjdfj": "45634",
"exp_content": "",
"dfjgdfj": "",
"dfjdfjgdfj": "56745745",
"dfgjdfgjh": 45756758,
"jdfgjhfdgj": 0,
},
"sdfgsdfg": [
{
"sgasgag": "4673476",
"agasgdas": 5675467,
"asgasgasg": "",
"asdgasgas": 4567456754,
"dhsdsxchsdh": 54675467,
"sdfhsdhsdh": "5674756457"
}
]
},
"erherth": 0,
}
}這一看就知道上邊的報(bào)文在postman里邊肯定會(huì)報(bào)錯(cuò)，因?yàn)閑xp_Content，因此他又沒有用到，所以你想把他刪掉。其實(shí)也沒那么難刪
也就是用到了流轉(zhuǎn)字符串。字符串固定字符查找，然后進(jìn)行字符串轉(zhuǎn)字符流，刪掉字符流中固定字符，之后再轉(zhuǎn)回來。因?yàn)樽址呀?jīng)是final了所以很多用法都是使用字符串轉(zhuǎn)字符流實(shí)現(xiàn)的
private JSONObject resolveApplicationJson(HttpServletRequest request) {
InputStream is = null;
String json = null;
try {
is = request.getInputStream();
json = IOUtils.toString(is, "UTF-8");
json=json.replaceAll("\\r|\n|\t","");
int index= json.indexOf("exp_Content");
int indexfirst=json.indexOf("{", index);
int indexlast=json.indexOf("}",index);
if (index!=-1 && indexlast !=-1 &&indexfirst !=-1) {
StringBuffer stringBuffer = new StringBuffer(json);
stringBuffer.delete(indexfirst,indexlast+1);
json=stringBuffer.toString();
}
} catch (IOException e) {
throw new RuntimeException("CANNOT get reader from request!", e);
} finally {
if (is != null) {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
try {
return new JSONObject(json);
} catch (JSONException e) {
throw new RuntimeException("CANOT CONVET JSON:[" + json + "] to JSONObject!", e);
}
}當(dāng)你拿到的報(bào)文是這樣的。
{
"input": {
"sdfsn": "23u4209350-2",
"fsfs": "128412094",
"sgsgsg": "15821059",
"inssgsuplc_admdfdfdvs": "125125332",
"dgh": "125215312",
"dfgdfg": "215215",
"sdhdsh": "",
"sdfsn": "",
"shdfshdshdsh": "shsdh",
"sdhdsh": "shsh.0",
"shsdhsd": "1",
"shsdh": "1607",
"input": {
"data": {
"dhfsdhsd": "235325",
"shsdhsdh": "03",
"dgd": "BE0445360",
"dfhfdh": "11",
"dshshsd": 76.56,
"ghjrfgj": "01",
"grjf": "234623626",
"hjfd": "236436",
"djfdfgjdfj": "45634",
"exp_Content": "{"gdsg":"01","gjfj":"658568","fjfj":"5675467","ghfjfgkj":"68568","vmgfvj":"658568","gfhjgfyk":"0","fghkfghkg":"5474567"}",
"dfjgdfj": "",
"dfjdfjgdfj": "56745745",
"dfgjdfgjh": 45756758,
"jdfgjhfdgj": 0,
}
}
},
"output": {
"output": {
"r757": {
"dhfsdhsd": "235325",
"shsdhsdh": "03",
"dgd": "BE0445360",
"exp_Content": "{"gdsg":"01","gjfj":"658568","fjfj":"5675467","ghfjfgkj":"68568","vmgfvj":"658568","gfhjgfyk":"0","fghkfghkg":"5474567"}",
"dfhfdh": "11",
"dshshsd": 76.56,
"ghjrfgj": "01",
"grjf": "234623626",
"hjfd": "236436",
"djfdfgjdfj": "45634",
"exp_content": "{"gdsg":"01","gjfj":"658568","fjfj":"5675467","ghfjfgkj":"68568","vmgfvj":"658568","gfhjgfyk":"0","fghkfghkg":"5474567"}",
"dfjgdfj": "",
"dfjdfjgdfj": "56745745",
"dfgjdfgjh": 45756758,
"jdfgjhfdgj": 0,
},
"sdfgsdfg": [
{
"sgasgag": "4673476",
"agasgdas": 5675467,
"asgasgasg": "",
"asdgasgas": 4567456754,
"dhsdsxchsdh": 54675467,
"sdfhsdhsdh": "5674756457"
}
]
},
"erherth": 0,
}
}解決方式如下：根據(jù)需要寫出正則表達(dá)式，再使用正則看看有幾個(gè)這樣的不需要的符號(hào)，然后循環(huán)遍歷幾次，之后找到這部分，最后刪除掉。
# 全局變量 private static String REGEX = "exp_[c,C]ontent"; # 方式方法 Pattern p = Pattern.compile(REGEX); // 獲取 matcher 對(duì)象 Matcher m = p.matcher(JSON); Listlist = new ArrayList(); while(m.find()){ list.add(m.start()); } int index=0; int indexfirst=0; int indexlast=0; for (int j = 0; j < list.size(); j++) { index=JSON.indexOf("exp_",indexlast); indexfirst=JSON.indexOf("{", index); indexlast=JSON.indexOf("}",index); StringBuffer stringBuffer =null; if (indexlast !=-1 &&indexfirst !=-1) { stringBuffer = new StringBuffer(JSON); stringBuffer.delete(indexfirst,indexlast+1); } JSON=stringBuffer.toString(); }
到此，相信大家對(duì)“JAVA如何刪除字符串固定下標(biāo)字串”有了更深的了解，不妨來實(shí)際操作一番吧！這里是創(chuàng)新互聯(lián)網(wǎng)站，更多相關(guān)內(nèi)容可以進(jìn)入相關(guān)頻道進(jìn)行查詢，關(guān)注我們，繼續(xù)學(xué)習(xí)！
