这篇文章主要讲解了“怎么用web过滤器增加solr后台登录验证”，文中的讲解内容简单清晰，易于学习与理解，下面请大家跟着小编的思路慢慢深入，一起来研究和学习“怎么用web过滤器增加solr后台登录验证”吧！
solr后台自带是没有登录功能的，默认访问地址是：http://localhost:8983/solr/#/(内置jetty运行)。
要给sorl后台增加登录验证方法：
1、使用web服务器的登录验证(例如jetty、tomcat)
这种方式好处是不需要另外写代码，只需配置一下对应的web服务器就行了。
2、使用web过滤器过滤地址验证
这种方法是更加灵活，缺点是需要点代码开发。
本文介绍的是第二种方法：
SolrLoginFilter.java
package com.penngo.solr;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.apache.commons.lang3.StringUtils;
public class SolrLoginFilter implements Filter {
public void init(FilterConfig config) throws ServletException {
}
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException {
HttpServletRequest httpRequest = (HttpServletRequest)request;
HttpServletResponse httpResponse = (HttpServletResponse)response;
HttpSession session = httpRequest.getSession();
String url = httpRequest.getRequestURL().toString();
String userAgent = httpRequest.getHeader("user-agent");
String query = httpRequest.getQueryString();
String servletPath = httpRequest.getServletPath();
String contextPath = httpRequest.getContextPath();
System.out.println("url======="
+ ", url:" + url + ", servletPath:" + servletPath + ", contextPath:" + contextPath + ", query:" + query
+ ", userAgent:" + userAgent);
Object isLogin = session.getAttribute("isLogin");
if(isLogin == null || ((boolean)isLogin) != true) {
String user = StringUtils.isEmpty(request.getParameter("user")) == false ? request.getParameter("user") : "";
String password = StringUtils.isEmpty(request.getParameter("password")) == false ? request.getParameter("password") : "";
if(user.equals("admin") == true && password.equals("123") == true) {
session.setAttribute("isLogin", true);
httpResponse.sendRedirect(contextPath);
return;
}
else {
httpRequest.setCharacterEncoding("UTF-8");
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
out.println(loginPage());
out.close();
return;
}
}
chain.doFilter(request, response);
}
public void destroy() {
}
private String loginPage() {
String page = "<html>\n"
+ "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\" />\n"
+ "<body>\n"
+ "<form action=\"/solr/login\">\n"
+ "用户名：<input type=\"text\" name=\"user\" value=\"\"></br></br>\n"
+ "密  码：<input type=\"password\" name=\"password\"></br></br>\n"
+ "<button type=\"submit\" >登录 </button>\n"
+ "</form>\n"
+ "</body\n"
+ "</html>";
return page;
}
}在原来的web.xml中增加过滤器配置
<?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" metadata-complete="true" > <!-- 配置登录过滤器 --> <filter> <filter-name>SolrLoginFilter</filter-name> <filter-class>com.penngo.solr.SolrLoginFilter</filter-class> </filter> <filter-mapping> <filter-name>SolrLoginFilter</filter-name> <url-pattern>/</url-pattern> </filter-mapping> <!-- 配置登录过滤器 --> <!-- Any path (name) registered in solrconfig.xml will be sent to that filter --> <filter> <filter-name>SolrRequestFilter</filter-name> <filter-class>org.apache.solr.servlet.SolrDispatchFilter</filter-class> <!-- Exclude patterns is a list of directories that would be short circuited by the SolrDispatchFilter. It includes all Admin UI related static content. NOTE: It is NOT a pattern but only matches the start of the HTTP ServletPath. --> <init-param> <param-name>excludePatterns</param-name> <param-value>/partials/.+,/libs/.+,/css/.+,/js/.+,/img/.+,/templates/.+</param-value> </init-param> </filter> <filter-mapping> <filter-name>SolrRequestFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <servlet> <servlet-name>LoadAdminUI</servlet-name> <servlet-class>org.apache.solr.servlet.LoadAdminUiServlet</servlet-class> </servlet> <servlet> <servlet-name>SolrRestApi</servlet-name> <servlet-class>org.restlet.ext.servlet.ServerServlet</servlet-class> <init-param> <param-name>org.restlet.application</param-name> <param-value>org.apache.solr.rest.SolrSchemaRestApi</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>LoadAdminUI</servlet-name> <url-pattern>/index.html</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>SolrRestApi</servlet-name> <url-pattern>/schema/*</url-pattern> </servlet-mapping> <mime-mapping> <extension>.xsl</extension> <!-- per http://www.w3.org/TR/2006/PR-xslt20-20061121/ --> <mime-type>application/xslt+xml</mime-type> </mime-mapping> <welcome-file-list> <welcome-file>index.html</welcome-file> </welcome-file-list> <!-- Get rid of error message --> <security-constraint> <web-resource-collection> <web-resource-name>Disable TRACE</web-resource-name> <url-pattern>/</url-pattern> <http-method>TRACE</http-method> </web-resource-collection> <auth-constraint/> </security-constraint> <security-constraint> <web-resource-collection> <web-resource-name>Enable everything but TRACE</web-resource-name> <url-pattern>/</url-pattern> <http-method-omission>TRACE</http-method-omission> </web-resource-collection> </security-constraint> </web-app>
运行结果：
感谢各位的阅读，以上就是“怎么用web过滤器增加solr后台登录验证”的内容了，经过本文的学习后，相信大家对怎么用web过滤器增加solr后台登录验证这一问题有了更深刻的体会，具体使用情况还需要大家实践验证。这里是亿速云，小编将为大家推送更多相关知识点的文章，欢迎关注！
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