我正在尝试自学 Java Servlet 和 JSP,但在使用 Tomcat 7 和 Postgres 9.1 进行身份验证时遇到了问题。
它似乎没有错误(Tomcat 没有在其日志文件中抛出任何 JAVA 错误)并且可以正常工作,但是它缺少一些东西,因为它永远不会让我进行身份验证。几乎就像用户名和密码与我在 postgres 中的表空间中的内容不匹配一样。
有没有办法在我的代码中引入额外的日志记录,以便我可以看到正在查询的内容和返回的内容以及不匹配的原因。这肯定有助于我的故障排除工作。
为了您的信息,我附上了我的 context.xml (META_INF)、web.xml (WEB_INF) 和我的登录 html)
我感谢您的帮助
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5">
<!-- Define two security roles -->
<security-role>
<description>customer service testers</description>
<role-name>testing</role-name>
</security-role>
<security-role>
<description>system developers</description>
<role-name>developer</role-name>
</security-role>
<!-- Restrict access to all files in the /admin folder -->
<security-constraint>
<web-resource-collection>
<web-resource-name>Protected Area</web-resource-name>
<url-pattern>/admin/*</url-pattern>
</web-resource-collection>
<!-- Authorize the programmer and service roles -->
<auth-constraint>
<role-name>developer</role-name>
<role-name>testing</role-name>
</auth-constraint>
</security-constraint>
<!-- Use form-based authentication -->
<!--<login-config>
<auth-method>FORM</auth-method>
<form-login-config>
<form-login-page>/admin/login.html</form-login-page>
<form-error-page>/admin/login_error.html</form-error-page>
</form-login-config>
</login-config>
-->
<!-- Use basic authentication -->
<login-config>
<auth-method>BASIC</auth-method>
<realm-name>Admin Login</realm-name>
</login-config>
<session-config>
<session-timeout>30</session-timeout>
</session-config>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
<?xml version="1.0" encoding="UTF-8"?>
<Context path="/AUTHExample">
<Realm className="org.apache.catalina.realm.JDBCRealm" debug="99"
driverName="org.postgresql.Driver"
connectionURL="jdbc:postgresql://localhost:5432/mydb"
connectionName="postgres" connectionPassword="postgres"
userTable="userpass" userNameCol="user" userCredCol="passwd"
userRoleTable="userrole" roleNameCol="rolename"
/>
</Context>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title>Learning to Authenticate</title>
</head>
<body>
<h1>Admin Login Form</h1>
<p>Please enter your username and password to continue.</p>
<table cellspacing="5" border="0">
<form action="j_security_check" method="get">
<tr>
<td align="right">Username</td>
<td><input type="text" name="j_username"></td>
</tr>
<tr>
<td align="right">Password</td>
<td><input type="password" name="j_password"></td>
</tr>
<tr>
<td><input type="submit" value="Login"></td>
</tr>
</form>
</table>
</body>
</html>