分享
 
 
 

一些非常有用的JAVA常用方法

王朝java/jsp·作者佚名  2008-05-31
窄屏简体版  字體: |||超大  

<%!

stc_RSYB_Name stcRSYName1[];

stc_SYB_INF stcSYBINF1[];

%>

<%/*

String p = (String) session.getValue("Access");

if (p==null !p.equals("1")) {

response.sendRedirect("error.htm");

return;

}*/

%>

<%!

file://得到机器名字或IP

String get_Myhostname(Javax.servlet.http.HttpServletRequest request){

String myhostname = null;

try{

myhostname = request.getRemoteHost();

myhostname = myhostname.toUpperCase();

}catch(Exception e){}

return myhostname;

}

file://处理空字符串

String dealNull(String str) {

String returnstr = null;

if (str == null) returnstr = "";

else returnstr = str;

return returnstr;

}

file://处理空对象

Object dealNull(Object obj){

Object returnstr = null;

if (obj == null) returnstr = (Object)("");

else returnstr = obj;

return returnstr;

}

int dealEmpty(String s) {

s = dealNull(s);

if (s.equals("")) return 0;

return Integer.parseInt(s);

}

String replace(String str,String substr,String restr){

String[] tmp = split(str,substr);

String returnstr = null;

if(tmp.length!=0) {

returnstr = tmp[0];

for(int i = 0 ; i < tmp.length - 1 ; i++)

returnstr =dealNull(returnstr) + restr +tmp[i+1];

}

return dealNull(returnstr);

}

String HtmlEncode(String txt){

txt = replace(txt,"&","&");

txt = replace(txt,"&amp;","&");

txt = replace(txt,"&quot;",""");

txt = replace(txt,""",""");

txt = replace(txt,"&lt;","<");

txt = replace(txt,"<","<");

txt = replace(txt,"&gt;",">");

txt = replace(txt,">",">");

txt = replace(txt,"&nbsp;"," ");

txt = replace(txt," "," ");

return txt;

}

String unHtmlEncode(String txt){

txt = replace(txt,"&","&");

txt = replace(txt,""",""");

txt = replace(txt,"<","<");

txt = replace(txt,">",">");

txt = replace(txt," "," ");

return txt;

}

file://ALERT Function

void sAlert(String title,String msg,String focus, jspWriter out){

try {

out.println("<script language=´javascript´>");

out.println("alert("" + title + "" + "\r\n" + "" + replace(replace(msg,"´´","´"),""","\"") +"");");

out.println(focus);

out.println("</script>");

} catch(Exception e) { System.out.println(e);}

}

file://CONFIRM Function

void sConfirm(String title,String msg ,String location,JspWriter out){

try{

out.println("<script language=´javascript´>");

out.println("if(confirm("" + title + "" + "\r\n" + "" + replace(msg,""","\"") + "")){" );

out.println("var d = (new Date()).toString();");

out.println(location + "+ d;");

out.println("}");

out.println("parent.document.form1.text1.select();");

out.println("</script>");

} catch (Exception e) { }

}

file://得到字符串长度

int getStringLength(String s) {

int p = 0;

try {

int iLength = 0;

int irealLength = 0;

int j = 0;

p = s.getBytes("Shift_JIS").length;

} catch(java.io.UnsupportedEncodingException e) {}

return p;

}

void formatString(String s,int b,JspWriter out){

b--;

String t = "";

try {

int leng = getStringLength(s);

int j = 0;

if (leng > b) {

for (int i = 1; i <= b ; i++) {

t = s.substring(0,i);

if (t.getBytes("Shift_JIS").length <= b ) {

j++;

} else break;

}

file://j = j+1;

file://System.out.println("b=" + b + "----" + "j=" + j);

for(int i = 0;i < j; i++){

if(s.substring(i,i+1).equals(" "))

out.print(" ");

if(!

 
 
 
免责声明:本文为网络用户发布,其观点仅代表作者个人观点,与本站无关,本站仅提供信息存储服务。文中陈述内容未经本站证实,其真实性、完整性、及时性本站不作任何保证或承诺,请读者仅作参考,并请自行核实相关内容。
2023年上半年GDP全球前十五强
 百态   2023-10-24
美众议院议长启动对拜登的弹劾调查
 百态   2023-09-13
上海、济南、武汉等多地出现不明坠落物
 探索   2023-09-06
印度或要将国名改为“巴拉特”
 百态   2023-09-06
男子为女友送行,买票不登机被捕
 百态   2023-08-20
手机地震预警功能怎么开?
 干货   2023-08-06
女子4年卖2套房花700多万做美容:不但没变美脸,面部还出现变形
 百态   2023-08-04
住户一楼被水淹 还冲来8头猪
 百态   2023-07-31
女子体内爬出大量瓜子状活虫
 百态   2023-07-25
地球连续35年收到神秘规律性信号,网友:不要回答!
 探索   2023-07-21
全球镓价格本周大涨27%
 探索   2023-07-09
钱都流向了那些不缺钱的人,苦都留给了能吃苦的人
 探索   2023-07-02
倩女手游刀客魅者强控制(强混乱强眩晕强睡眠)和对应控制抗性的关系
 百态   2020-08-20
美国5月9日最新疫情:美国确诊人数突破131万
 百态   2020-05-09
荷兰政府宣布将集体辞职
 干货   2020-04-30
倩女幽魂手游师徒任务情义春秋猜成语答案逍遥观:鹏程万里
 干货   2019-11-12
倩女幽魂手游师徒任务情义春秋猜成语答案神机营:射石饮羽
 干货   2019-11-12
倩女幽魂手游师徒任务情义春秋猜成语答案昆仑山:拔刀相助
 干货   2019-11-12
倩女幽魂手游师徒任务情义春秋猜成语答案天工阁:鬼斧神工
 干货   2019-11-12
倩女幽魂手游师徒任务情义春秋猜成语答案丝路古道:单枪匹马
 干货   2019-11-12
倩女幽魂手游师徒任务情义春秋猜成语答案镇郊荒野:与虎谋皮
 干货   2019-11-12
倩女幽魂手游师徒任务情义春秋猜成语答案镇郊荒野:李代桃僵
 干货   2019-11-12
倩女幽魂手游师徒任务情义春秋猜成语答案镇郊荒野:指鹿为马
 干货   2019-11-12
倩女幽魂手游师徒任务情义春秋猜成语答案金陵:小鸟依人
 干货   2019-11-12
倩女幽魂手游师徒任务情义春秋猜成语答案金陵:千金买邻
 干货   2019-11-12
 
推荐阅读
 
 
 
>>返回首頁<<
 
靜靜地坐在廢墟上,四周的荒凉一望無際,忽然覺得,淒涼也很美
© 2005- 王朝網路 版權所有