myeclipse揭示Multiple markers at this line是什么意思
myeclipse提示Multiple markers at this line是什么意思？
我用myeclipse做JSP，运行servlet 时错误，提示下面的是什么意思？
Multiple markers at this line
- Debug Current Instruction Pointer
- Line breakpoint:HandleRegister [line: 172] - service(HttpServletRequest,
HttpServletResponse)
原文件是这样的：
package servlets.zc;
import beans.zc.Register;
import java.sql.*;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class HandleRegister extends HttpServlet
{
private static final long serialVersionUID = 1L;
public void init(ServletConfig config)throws ServletException
{
super.init(config);
try
{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
}
catch(Exception e){}
}
public String handleString(String s)
{
try
{
byte bb[]=s.getBytes("iso-8859-1");
s=new String(bb);
}
catch(Exception ee){}
return s;
}
public void service(HttpServletRequest request,HttpServletResponse response)throws IOException
{
Connection con;
Statement sql;
Register reg=new Register();
request.setAttribute("register", reg);
String name=request.getParameter("name").trim(),
pw=request.getParameter("pw").trim(),
opw=request.getParameter("opw").trim(),
em=request.getParameter("em").trim();
if(name.equals("")==true)
{
name="空";
reg.setBackNews("请输入您的信息，用户名称必须由字母和数字组成，带*号项必须填写。");
reg.setNameNews("您输入的用户名称为空，请重新输入。");
reg.setPwNews("");
reg.setOpwNews("");
reg.setEmNews("");
RequestDispatcher dispatcher=request.getRequestDispatcher("register.jsp");
try {
dispatcher.forward(request, response);
} catch (ServletException e) {
e.printStackTrace();
}
}
else if(pw.equals("")==true)
{
pw="空";
reg.setBackNews("请输入您的信息，用户名称必须由字母和数字组成，带*号项必须填写。");
reg.setNameNews("");
reg.setPwNews("您输入的密码为空，请设置您的密码。");
reg.setOpwNews("");
reg.setEmNews("");
RequestDispatcher dispatcher=request.getRequestDispatcher("register.jsp");
try {
dispatcher.forward(request, response);
} catch (ServletException e) {
e.printStackTrace();
}
}
else if(opw.equals("")==true)
{
pw="空";
reg.setBackNews("请输入您的信息，用户名称必须由字母和数字组成，带*号项必须填写。");
reg.setNameNews("");
reg.setPwNews("");
reg.setOpwNews("请确认您的密码。");
reg.setEmNews("");
RequestDispatcher dispatcher=request.getRequestDispatcher("register.jsp");
try {
dispatcher.forward(request, response);
} catch (ServletException e) {
e.printStackTrace();
}
}
else if(pw.equals(opw)==false)
{
reg.setBackNews("请输入您的信息，用户名称必须由字母和数字组成，带*号项必须填写。");
reg.setNameNews("");
reg.setPwNews("");
reg.setOpwNews("您两次输入的密码不一样，请确认您的密码。");
reg.setEmNews("");
RequestDispatcher dispatcher=request.getRequestDispatcher("register.jsp");
try {
dispatcher.forward(request, response);
} catch (ServletException e) {
e.printStackTrace();
}
}
else if(em.equals("")==true)
{
em="空";
reg.setBackNews("请输入您的信息，用户名称必须由字母和数字组成，带*号项必须填写。");
reg.setNameNews("");
reg.setPwNews("");
reg.setOpwNews("");
reg.setEmNews("您输入的邮箱地址为空，请重新输入您的邮箱地址。");
RequestDispatcher dispatcher=request.getRequestDispatcher("register.jsp");
try {
dispatcher.forward(request, response);
} catch (ServletException e) {
e.printStackTrace();
}
}
else
{
boolean boo=true;
for(int i=0;i<name.length();i++)
{
char c=name.charAt(i);
if(!((c>='a'&&c<='z')||(c>='A'&&c<='Z')||(c>='0'&&c<='9')))
{
boo=false;
}
}
if(boo==false)
{
reg.setBackNews("请输入您的信息，用户名称必须由字母和数字组成，带*号项必须填写。");
reg.setNameNews("您输入的用户名称含有非法字符，请重新输入。");
reg.setPwNews("");
reg.setOpwNews("");
reg.setEmNews("");
RequestDispatcher dispatcher=request.getRequestDispatcher("register.jsp");
try {
dispatcher.forward(request, response);
} catch (ServletException e) {
e.printStackTrace();
}
}
else
{
try{
con=DriverManager.getConnection("jdbc:odbc:test","sa", "123456789A");
sql=con.createStatement();
boolean m=sql.execute("SELECT * FROM gr_user_d WHERE name='cy'");
boolean n=sql.execute("SELECT * FROM gr_user_d WHERE em='cy'");
response.setContentType("text/html;charset=gb2312");
PrintWriter out=response.getWriter();
out.print("<html><body>");
out.print("<center><h>数据库连接成功</h></center>");
out.print("<center><table border=2>");
out.print("<tr>");
out.print("<th>"+"用户名："+"</th>");
out.print("<th>"+"密 码："+"</th>");
out.print("<th>"+"邮 箱："+"</th>");
我用myeclipse做JSP，运行servlet 时错误，提示下面的是什么意思？
Multiple markers at this line
- Debug Current Instruction Pointer
- Line breakpoint:HandleRegister [line: 172] - service(HttpServletRequest,
HttpServletResponse)
原文件是这样的：
package servlets.zc;
import beans.zc.Register;
import java.sql.*;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class HandleRegister extends HttpServlet
{
private static final long serialVersionUID = 1L;
public void init(ServletConfig config)throws ServletException
{
super.init(config);
try
{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
}
catch(Exception e){}
}
public String handleString(String s)
{
try
{
byte bb[]=s.getBytes("iso-8859-1");
s=new String(bb);
}
catch(Exception ee){}
return s;
}
public void service(HttpServletRequest request,HttpServletResponse response)throws IOException
{
Connection con;
Statement sql;
Register reg=new Register();
request.setAttribute("register", reg);
String name=request.getParameter("name").trim(),
pw=request.getParameter("pw").trim(),
opw=request.getParameter("opw").trim(),
em=request.getParameter("em").trim();
if(name.equals("")==true)
{
name="空";
reg.setBackNews("请输入您的信息，用户名称必须由字母和数字组成，带*号项必须填写。");
reg.setNameNews("您输入的用户名称为空，请重新输入。");
reg.setPwNews("");
reg.setOpwNews("");
reg.setEmNews("");
RequestDispatcher dispatcher=request.getRequestDispatcher("register.jsp");
try {
dispatcher.forward(request, response);
} catch (ServletException e) {
e.printStackTrace();
}
}
else if(pw.equals("")==true)
{
pw="空";
reg.setBackNews("请输入您的信息，用户名称必须由字母和数字组成，带*号项必须填写。");
reg.setNameNews("");
reg.setPwNews("您输入的密码为空，请设置您的密码。");
reg.setOpwNews("");
reg.setEmNews("");
RequestDispatcher dispatcher=request.getRequestDispatcher("register.jsp");
try {
dispatcher.forward(request, response);
} catch (ServletException e) {
e.printStackTrace();
}
}
else if(opw.equals("")==true)
{
pw="空";
reg.setBackNews("请输入您的信息，用户名称必须由字母和数字组成，带*号项必须填写。");
reg.setNameNews("");
reg.setPwNews("");
reg.setOpwNews("请确认您的密码。");
reg.setEmNews("");
RequestDispatcher dispatcher=request.getRequestDispatcher("register.jsp");
try {
dispatcher.forward(request, response);
} catch (ServletException e) {
e.printStackTrace();
}
}
else if(pw.equals(opw)==false)
{
reg.setBackNews("请输入您的信息，用户名称必须由字母和数字组成，带*号项必须填写。");
reg.setNameNews("");
reg.setPwNews("");
reg.setOpwNews("您两次输入的密码不一样，请确认您的密码。");
reg.setEmNews("");
RequestDispatcher dispatcher=request.getRequestDispatcher("register.jsp");
try {
dispatcher.forward(request, response);
} catch (ServletException e) {
e.printStackTrace();
}
}
else if(em.equals("")==true)
{
em="空";
reg.setBackNews("请输入您的信息，用户名称必须由字母和数字组成，带*号项必须填写。");
reg.setNameNews("");
reg.setPwNews("");
reg.setOpwNews("");
reg.setEmNews("您输入的邮箱地址为空，请重新输入您的邮箱地址。");
RequestDispatcher dispatcher=request.getRequestDispatcher("register.jsp");
try {
dispatcher.forward(request, response);
} catch (ServletException e) {
e.printStackTrace();
}
}
else
{
boolean boo=true;
for(int i=0;i<name.length();i++)
{
char c=name.charAt(i);
if(!((c>='a'&&c<='z')||(c>='A'&&c<='Z')||(c>='0'&&c<='9')))
{
boo=false;
}
}
if(boo==false)
{
reg.setBackNews("请输入您的信息，用户名称必须由字母和数字组成，带*号项必须填写。");
reg.setNameNews("您输入的用户名称含有非法字符，请重新输入。");
reg.setPwNews("");
reg.setOpwNews("");
reg.setEmNews("");
RequestDispatcher dispatcher=request.getRequestDispatcher("register.jsp");
try {
dispatcher.forward(request, response);
} catch (ServletException e) {
e.printStackTrace();
}
}
else
{
try{
con=DriverManager.getConnection("jdbc:odbc:test","sa", "123456789A");
sql=con.createStatement();
boolean m=sql.execute("SELECT * FROM gr_user_d WHERE name='cy'");
boolean n=sql.execute("SELECT * FROM gr_user_d WHERE em='cy'");
response.setContentType("text/html;charset=gb2312");
PrintWriter out=response.getWriter();
out.print("<html><body>");
out.print("<center><h>数据库连接成功</h></center>");
out.print("<center><table border=2>");
out.print("<tr>");
out.print("<th>"+"用户名："+"</th>");
out.print("<th>"+"密 码："+"</th>");
out.print("<th>"+"邮 箱："+"</th>");