JSP修改程序的端口！在线等

是应该这样，配置文件也读出来，现在是问具体的方法，怎么才能修改其中port后面的参数，再保存

呃。文件里的内容是什么格式呢？
XML？
还是另外的格式？如果是XML的话，直接用xml对象来操作，很方便。
如果不是XML，那么就按这个.cfg文件的格式来读取，自己写一个算法。

#
# $Id: ser.cfg,v 1.25.2.1 2005/02/18 14:30:44 andrei Exp $
#
# simple quick-start config script
## ----------- global configuration parameters ------------------------#debug=3         # debug level (cmd line: -dddddddddd)
#fork=yes
#log_stderror=no # (cmd line: -E)/* Uncomment these lines to enter debugging mode
fork=no
log_stderror=yes
*/check_via=no # (cmd. line: -v)
dns=no           # (cmd. line: -r)
rev_dns=no      # (cmd. line: -R)
port=5060
#children=4
fifo="/tmp/ser_fifo"# ------------------ module loading ----------------------------------# Uncomment this if you want to use SQL database
loadmodule "/usr/local/lib/ser/modules/mysql.so"loadmodule "/usr/local/lib/ser/modules/sl.so"
loadmodule "/usr/local/lib/ser/modules/tm.so"
loadmodule "/usr/local/lib/ser/modules/rr.so"
loadmodule "/usr/local/lib/ser/modules/maxfwd.so"
loadmodule "/usr/local/lib/ser/modules/usrloc.so"
loadmodule "/usr/local/lib/ser/modules/registrar.so"
loadmodule "/usr/local/lib/ser/modules/textops.so"# Add by Hysc at 2006/01/07
loadmodule "/usr/local/lib/ser/modules/nathelper.so"# Uncomment this if you want digest authentication
# mysql.so must be loaded !
loadmodule "/usr/local/lib/ser/modules/auth.so"
loadmodule "/usr/local/lib/ser/modules/auth_db.so"# ----------------- setting module-specific parameters ---------------# -- usrloc params --#modparam("usrloc", "db_mode",   0)
modparam("usrloc", "db_mode",   2)# Add by Hysc at 2006/01/07
modparam("registrar", "nat_flag", 6)
modparam("nathelper", "natping_interval", 30) # Ping interval 30 s
modparam("nathelper", "ping_nated_only", 1)   # Ping only clients behind NAT# Uncomment this if you want to use SQL database
# for persistent storage and comment the previous line
#modparam("usrloc", "db_mode", 2)# -- auth params --
# Uncomment if you are using auth module
#
modparam("auth_db", "calculate_ha1", yes)
#
# If you set "calculate_ha1" parameter to yes (which true in this config),
# uncomment also the following parameter)
#
modparam("auth_db", "password_column", "password")# -- rr params --
# add value to ;lr param to make some broken UAs happy
modparam("rr", "enable_full_lr", 1)# -------------------------  request routing logic -------------------# main routing logic# Add by Hysc at 2006/01/07
#define NAT_UAC_TEST_C_1918     0x01
/*
* test for occurences of RFC1918 addresses in Contact
* header field
*/
#define NAT_UAC_TEST_RCVD       0x02
/*
* test if source address of signaling is different from
* address advertised in Via
*/
#define NAT_UAC_TEST_V_1918     0x04
/*
* test for occurences of RFC1918 addresses in SDP body
*/
#define NAT_UAC_TEST_S_1918     0x08
/*
* test for occurences of RFC1918 addresses top Via
*/route{ # initial sanity checks -- messages with
# max_forwards==0, or excessively long requests
if (!mf_process_maxfwd_header("10")) {
sl_send_reply("483","Too Many Hops");
break;
};
if (msg:len >=  2048 ) {
sl_send_reply("513", "Message too big");
break;
}; # Add by Hysc at 2006/01/07
if (nat_uac_test("3")) {
append_hf("Alex-hint: NAThelper\r\n");
fix_nated_contact(); # Rewrite contact with source IP of signalling
if (method == "REGISTER" || ! search("^Record-Route:")) {
#if (www_authorize("hysc.meibu.com", "subscriber")) {
# www_challenge("hysc.meibu.com", "1");
#};
if (method == "INVITE") {
append_hf("Alex-hint: SDP rewritten\r\n");
#fix_nated_sdp("1"); # Add direction=active to SDP
};
log("LOG: Someone trying to register from private IP, rewriting\n");
force_rport(); # Add rport parameter to topmost Via
setflag(6);    # Mark as NATed
};
}; # we record-route all messages -- to make sure that
# subsequent messages will go through our proxy; that's
# particularly good if upstream and downstream entities
# use different transport protocol
if (!method=="REGISTER") record_route(); # subsequent messages withing a dialog should take the
# path determined by record-routing
if (loose_route()) {
#  routing logic in request
append_hf("P-hint: rr-enforced\r\n");
route(1);
break;
}; if (!uri==myself) {
#  routing logic in request
append_hf("P-hint: outbound\r\n");
route(1);
break;
}; # if the request is for other domain use UsrLoc
# (in case, it does not work, use the following command
# with proper names and addresses in it)
if (uri==myself) { if (method=="REGISTER") {# Uncomment this if you want to use digest authentication
if (!www_authorize("hysc.meibu.com", "subscriber")) {
www_challenge("hysc.meibu.com", "0");
break;
}; save("location");
break;
}; lookup("aliases");
if (!uri==myself) {
append_hf("P-hint: outbound alias\r\n");
route(1);
break;
}; # native SIP destinations are handled using our USRLOC DB
if (!lookup("location")) {
sl_send_reply("404", "Not Found");
break;
};
};
append_hf("P-hint: usrloc applied\r\n");
route(1);
}# Modify by Hysc at 2006/01/07
#route[1]
#{
# send it out now; use stateful forwarding as it works reliably
# even for UDP2TCP
# if (!t_relay()) {
# sl_reply_error();
# };
#}
route[1]
{
# !! Nathelper
if (isflagset(6)) {
force_rtp_proxy();
append_hf("NAT: ...\r\n");
};
# NAT processing of replies; apply to all transactions (for example,
# re-INVITEs from public to private UA are hard to identify as
# NATed at the moment of request processing); look at replies
t_on_reply("1"); # send it out now; use stateful forwarding as it works reliably
# even for UDP2TCP
if (!t_relay()) {
sl_reply_error();
};
}# !! Nathelper
onreply_route[1] {
# NATed transaction ?
append_hf("NAT: tes\r\n");
#if (isflagset(6) && status == "(200)") {
        # added by Elvis 2006.02.27
        # for NAT
        if (1){
fix_nated_contact();
force_rport();
#  fix_nated_sdp("3");
force_rtp_proxy();
append_hf("NAT: test\r\n");
# otherwise, is it a transaction behind a NAT and we did not
# know at time of request processing ? (RFC1918 contacts)
} else if (nat_uac_test("1")) {
fix_nated_contact();
force_rport();
#  fix_nated_sdp("3");
force_rtp_proxy();
append_hf("NAT: test1\r\n");
};
}

很强大。用正则表达式/port=\d+/来找端口配置，找到后，replace数字值

直接读取那个xml..进行修改不就完了吗

这是一个linux下的程序，没有xml配置文件

用indexof查出了port的位置，接下来该怎么把后面参数读到text里显示出来，修改测试过了，可以用replace

调试易

JSP修改程序的端口！在线等

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