1錛?
| EL Expression | Result |
| ${1} | 1 |
| ${1 + 2} | 3 |
| ${1.2 + 2.3} | 3.5 |
| ${1.2E4 + 1.4} | 12001.4 |
| ${-4 - 2} | -6 |
| ${21 * 2} | 42 |
| ${3/4} | 0.75 |
| ${3 div 4} | 0.75 |
| ${3/0} | Infinity |
| ${10%4} | 2 |
| ${10 mod 4} | 2 |
| ${(1==2) ? 3 : 4} | 4 |
2錛?br />
| EL Expression | Result |
| ${1 < 2} | true |
| ${1 lt 2} | true |
| ${1 > (4/2)} | false |
| ${1 > (4/2)} | false |
| ${4.0 >= 3} | true |
| ${4.0 ge 3} | true |
| ${4 <= 3} | false |
| ${4 le 3} | false |
| ${100.0 == 100} | true |
| ${100.0 eq 100} | true |
| ${(10*10) != 100} | false |
| ${(10*10) ne 100} | false |
3錛?br />
| EL Expression | Result |
| ${'a' < 'b'} | true |
| ${'hip' > 'hit'} | false |
| ${'4' > 3} | true |
4錛?br />
| EL Expression | Result |
| ${param.foo} | bar聽 |
| ${param["foo"]} | bar聽 |
| ${header["host"]} | 127.0.0.1:8080 |
| ${header["accept"]} | */* |
| ${header["user-agent"]} | Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; .NET CLR 2.0.50727) |
5,
| EL Expression | Result |
| ${param["foo"]} | 0.2 聽 |
| ${my:reverse(param["foo"])} | 2.0聽 |
| ${my:reverse(my:reverse(param["foo"]))} | 0.2 聽 |
| ${my:countVowels(param["foo"])} | 0聽 |
1,澹版槑 鐢ㄤ簬鎻掑叆鏂規(guī)硶錛屽０鏄庡彉閲忥紝甯擱噺
2,琛ㄨ揪寮?鐢ㄤ簬杈撳嚭
3,scriptlet聽 鍖呭惈瀹屾暣java浠ｇ爜孌?br />
<!--澹版槑聽聽-->聽2
聽聽聽聽聽聽聽聽<%
!聽3
聽聽聽聽聽聽聽聽String聽a="clingingboy";聽4
聽聽聽聽聽聽聽聽Date聽myDate=new聽Date();聽5
聽聽聽聽聽聽聽聽private聽static聽String聽Add(String聽a,String聽b)聽6
聽聽聽聽聽聽聽聽{聽7
聽聽聽聽聽聽聽聽String聽c=a+b;聽8
聽聽聽聽聽聽聽聽return聽c;聽9
聽聽聽聽聽聽聽聽}10
聽聽聽聽聽聽聽聽%>11
聽聽聽聽聽聽聽聽<!--琛ㄨ揪寮徛犅?/span>-->12
聽聽聽聽聽聽聽聽<%=a+"浣犲ソ"聽%>13
聽聽聽聽聽聽聽聽<%=this.Add("錛岀幇鍦?/span>","鏃墮棿鏄?/span>")%><br>14
聽聽聽聽聽聽聽聽<%=myDate.getHours()%>15
聽聽聽聽聽聽聽聽<%=myDate.getMinutes()聽%>16
聽聽聽聽聽聽聽聽<br>17
聽聽聽聽聽聽聽聽<br>18
聽聽聽聽聽聽聽聽<!--scriptlet鑴氭湰鍏冪礌聽聽-->19
聽聽聽聽聽聽聽聽<%20
聽聽聽聽聽聽聽聽for(int聽i=1;i<=10;i++)21
聽聽聽聽聽聽聽聽{22
聽聽聽聽聽聽聽聽out.print("<font聽size="+i+">hello,world</font><br>");23
聽聽聽聽聽聽聽聽}24
聽聽聽聽聽聽聽聽%>鐩?/span>聽聽 褰?/span> | 鎻?/span>聽聽 榪?/span> |
/bin | 瀛樻斁windows鎴?/span>Linux騫沖彴涓婂惎鍔ㄥ拰鍏抽棴Tomcat鐨勮剼鏈枃浠?/span> |
/conf | 瀛樻斁Tomcat鏈嶅姟鍣ㄧ殑鍚勭閰嶇疆鏂囦歡錛屽叾涓渶閲嶈鐨勬槸server.xml |
/server | 鍖呭惈涓変釜瀛愮洰褰曪細(xì)classes銆?/span>lib鍜?/span>webapps |
/server/lib | 瀛樻斁Tomcat鏈嶅姟鍣ㄦ墍闇鐨勫悇縐?/span>JAR鏂囦歡 |
/server/webapps | 瀛樻斁Tomcat鑷甫鐨勪袱涓?/span>WEB搴旂敤錛?/span>admin搴旂敤鍜?/span> manager搴旂敤 |
/common/lib | 瀛樻斁Tomcat鏈嶅姟鍣ㄤ互鍙?qiáng)鎵鏈?/span>web搴旂敤閮藉彲浠ヨ闂殑jar鏂囦歡 |
/shared/lib | 瀛樻斁鎵鏈?/span>web搴旂敤閮藉彲浠ヨ闂殑jar鏂囦歡錛堜絾鏄笉鑳借Tomcat鏈嶅姟鍣ㄨ闂級(jí) |
/logs | 瀛樻斁Tomcat鐨勬棩蹇楁枃浠?/span> |
/webapps | 褰撳彂甯?/span>Web搴旂敤鏃訛紝榛樿鎯呭喌涓嬫妸Web搴旂敤鏂囦歡鏀句簬姝ょ洰褰?/span> |
/work | Tomcat鎶婂張JSP鐢熸垚鐨?/span>Servlet鏀句簬姝ょ洰褰曚笅 |
鍋囪鍦?/span><CATALINA_HOME>/webapps涓嬫湁helloapp鐨?/span>web搴旂敤錛屽涓?/span>錛?/span> | |
/helloapp | Web搴旂敤鐨勬牴鐩綍錛屾墍鏈夌殑jsp鏂囦歡鍜?/span>html鏂囦歡閮藉湪姝ょ洰褰曚笅 |
/helloapp/WEB_INF | 瀛樻斁web鍙戝竷鏃剁殑鎻忚堪鏂囦歡web.xml |
/helloapp/WEB_INF/class | 瀛樻斁鍚勭class鏂囦歡錛?/span>Servlet鏂囦歡涔熷瓨鏀句簬姝ょ洰褰曚笅銆?/span> |
/helloapp/WEB_INF/lib | 瀛樻斁鍚勯挓Web搴旂敤鎵闇瑕佺殑jar鏂囦歡銆傛瘮濡傚彲浠ュ瓨鏀?/span>JDBC椹卞姩紼嬪簭鐨?/span>JAR鏂囦歡 |