Spring Security，JDBC，c3p0连接问题

问题描述

为了提高技能，我决定参加有关Spring框架的Udemy课程。在此课程中，有一项任务是使用JDBC和C3P0创建登录应用程序。

我遵循了所有课程的详细信息和讲师的提示。在Tomcat上部署我的应用程序后，该应用程序正在运行，但是无法使用数据库中存储的数据登录。我的目标是登录该应用程序，但目前无法实现。我什至下载了解决方案代码，但是即使解雇了它，我也无法登录到其他应用程序部分。

整个代码结构很好（至少我确实相信）。下面，我放置了最重要的类和文件的屏幕和代码。

我试图从数据库中删除{noop}，但是没有任何结果。我也曾尝试使用空行作为密码-没有成功。当我从内存中使用auth进行日志记录时，一切都很好，但是当我尝试从数据库中解析它时，我无法登录（没有错误日志，我只是从应用程序中获得了用户名和密码错误的信息。 >

DemoAppConfig.java

package com.luv2code.springs@R_404[email protected]fig;

import java.beans.PropertyVetoException;
import java.util.logging.Logger;

import javax.sql.DataSource;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.core.env.Environment;
import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.view.InternalResourceViewResolver;

import com.mchange.v2.c3p0.ComboPooledDataSource;

@Configuration
@EnableWebMvc
@ComponentScan(basePackages="com.luv2code.springs@R_404[email protected]")
@PropertySource("classpath:persistence-MysqL.properties")
public class DemoAppConfig {

    // set up variable to hold the properties
    
    @Autowired
    private Environment env;
    
    // set up a logger for diagnostics
    
    private Logger logger = Logger.getLogger(getClass().getName());
    
    
    // define a bean for ViewResolver

    @Bean
    public ViewResolver viewResolver() {
        
        InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
        
        viewResolver.setPrefix("/WEB-INF/view/");
        viewResolver.setSuffix(".jsp");
        
        return viewResolver;
    }
    
    // define a bean for our s@R_404_4395@ datasource
    
    @Bean
    public DataSource s@R_404_4395@DataSource() {
        
        // create connection pool
        ComboPooledDataSource s@R_404_4395@DataSource
                                    = new ComboPooledDataSource();
                
        // set the jdbc driver class
        
        try {
            s@R_404[email protected](env.getProperty("jdbc.driver"));
        } catch (PropertyVetoException exc) {
            throw new RuntimeException(exc);
        }
        
        // log the connection props
        // for sanity's sake,log this info
        // just to make sure we are REALLY reading data from properties file
        
        logger.info(">>> jdbc.url=" + env.getProperty("jdbc.url"));
        logger.info(">>> jdbc.user=" + env.getProperty("jdbc.user"));
        
        
        // set database connection props
        
        s@R_404[email protected](env.getProperty("jdbc.url"));
        s@R_404[email protected](env.getProperty("jdbc.user"));
        s@R_404[email protected](env.getProperty("jdbc.password"));
        
        // set connection pool props
        
        s@R_404[email protected]tinitialPoolSize(
                getIntProperty("connection.pool.initialPoolSize"));

        s@R_404[email protected](
                getIntProperty("connection.pool.minPoolSize"));

        s@R_404[email protected](
                getIntProperty("connection.pool.maxPoolSize"));

        s@R_404[email protected](
                getIntProperty("connection.pool.maxIdleTime"));
        
        return s@R_404_4395@DataSource;
    }
    
    // need a helper method 
    // read environment property and convert to int
    
    private int getIntProperty(String propName) {
        
        String propVal = env.getProperty(propName);
        
        // Now convert to int
        int intPropVal = Integer.parseInt(propVal);
        
        return intPropVal;
    }
}

DemoS@[e-mail]

package com.luv2code.springs@R_404[email protected]fig;

import javax.sql.DataSource;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.s@R_404[email protected]fig.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.s@R_404[email protected]fig.annotation.web.builders.HttpS@R_404_4395@;
import org.springframework.s@R_404[email protected]fig.annotation.web.configuration.EnableWebS@R_404_4395@;
import org.springframework.s@R_404[email protected]fig.annotation.web.configuration.WebS@R_404_4395@ConfigurerAdapter;
import org.springframework.s@R_404[email protected];
import org.springframework.s@R_404[email protected];

@Configuration
@EnableWebS@R_404_4395@
public class DemoS@R_404_4395@Config extends WebS@R_404_4395@ConfigurerAdapter {

    // add a reference to our s@R_404_4395@ data source
    
    @Autowired
    private DataSource s@R_404_4395@DataSource;
    
    
    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {

        // use jdbc authentication ... oh yeah!!!
        
        auth.jdbcAuthentication().dataSource(s@R_404_4395@DataSource);
        
    }

    @Override
    protected void configure(HttpS@R_404_4395@ http) throws Exception {

        http.authorizeRequests()
            .antMatchers("/").hasRole("EMPLOYEE")
            .antMatchers("/leaders/**").hasRole("MANAGER")
            .antMatchers("/systems/**").hasRole("ADMIN")
            .and()
            .formLogin()
                .loginPage("/showMyLoginPage")
                .loginProcessingUrl("/authenticateTheUser")
                .permitAll()
            .and()
            .logout().permitAll()
            .and()
            .exceptionHandling().accessDeniedPage("/access-denied");
        
    }
        
}

MySpringMvcdispatcherServletinitializer.java

package com.luv2code.springs@R_404[email protected]fig;

import org.springframework.web.servlet.support.AbstractAnnotationConfigdispatcherServletinitializer;

public class MySpringMvcdispatcherServletinitializer extends AbstractAnnotationConfigdispatcherServletinitializer {

    @Override
    protected Class<?>[] getRootConfigClasses() {
        // Todo Auto-generated method stub
        return null;
    }

    @Override
    protected Class<?>[] getServletConfigClasses() {
        return new Class[] { DemoAppConfig.class };
    }

    @Override
    protected String[] getServletMappings() {
        return new String[] { "/" };
    }

}

persistence-MysqL.properties

#
# JDBC connection properties
#
jdbc.driver=com.MysqL.jdbc.Driver
jdbc.url=jdbc:MysqL://localhost:3306/spring_s@R_404_4395@_demo_plaintext?useSSL=false
jdbc.user=hbstudent
jdbc.password=hbstudent

#
# Connection pool properties
#
connection.pool.initialPoolSize=5
connection.pool.minPoolSize=5
connection.pool.maxPoolSize=20
connection.pool.maxIdleTime=3000

pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.luv2code</groupId>
    <artifactId>spring-s@R_404_4395@-demo</artifactId>
    <version>1.0</version>
    <packaging>war</packaging>

    <name>spring-s@R_404_4395@-demo</name>

    <properties>
        <springframework.version>5.0.2.RELEASE</springframework.version>
        <springs@R_404[email protected]>5.0.0.RELEASE</springs@R_404[email protected]>

        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
    </properties>

    <dependencies>

        <!-- Spring MVC support -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${springframework.version}</version>
        </dependency>

        <!-- Spring S@R_404_4395@ -->
        <!-- spring-s@R_404_4395@-web and spring-s@R_404_4395@-config -->
        
        <dependency>
            <groupId>org.springframework.s@R_404_4395@</groupId>
            <artifactId>spring-s@R_404_4395@-web</artifactId>
            <version>${springs@R_404[email protected]}</version>
        </dependency>
        
        <dependency>
            <groupId>org.springframework.s@R_404_4395@</groupId>
            <artifactId>spring-s@R_404_4395@-config</artifactId>
            <version>${springs@R_404[email protected]}</version>
        </dependency>   
        
        <!-- Add Spring S@R_404_4395@ Taglibs support -->
        <dependency>
            <groupId>org.springframework.s@R_404_4395@</groupId>
            <artifactId>spring-s@R_404_4395@-taglibs</artifactId>
            <version>${springs@R_404[email protected]}</version>
        </dependency>   
        
        <!-- Add MysqL and C3P0 support -->

        <dependency>
            <groupId>MysqL</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.45</version>
        </dependency>
        
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.5.2</version>
        </dependency>
                
        
        <!-- Servlet,JSP and JSTL support -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>
        </dependency>

        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>javax.servlet.jsp-api</artifactId>
            <version>2.3.1</version>
        </dependency>

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>

        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>3.8.1</version>
            <scope>test</scope>
        </dependency>

    </dependencies>

    <!-- TO DO: Add support for Maven WAR Plugin -->

    <build>
        <finalName>spring-s@R_404_4395@-demo</finalName>
    
        <pluginManagement>
            <plugins>
                <plugin>
                    <!-- Add Maven coordinates (GAV) for: maven-war-plugin -->
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-war-plugin</artifactId>
                    <version>3.2.0</version>                    
                </plugin>                       
            </plugins>
        </pluginManagement>
    </build>


</project>

负责生成数据库测试数据的sql代码

DROP DATABASE  IF EXISTS `spring_s@R_404_4395@_demo_plaintext`;

CREATE DATABASE  IF NOT EXISTS `spring_s@R_404_4395@_demo_plaintext`;
USE `spring_s@R_404_4395@_demo_plaintext`;

--
-- Table structure for table `users`
--

DROP TABLE IF EXISTS `users`;
CREATE TABLE `users` (
  `username` varchar(50) NOT NULL,`password` varchar(50) NOT NULL,`enabled` tinyint(1) NOT NULL,PRIMARY KEY (`username`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;

--
-- Inserting data for table `users`
--

INSERT INTO `users` 
VALUES 
('john','{noop}test123',1),('mary',('susan',1);


--
-- Table structure for table `authorities`
--

DROP TABLE IF EXISTS `authorities`;
CREATE TABLE `authorities` (
  `username` varchar(50) NOT NULL,`authority` varchar(50) NOT NULL,UNIQUE KEY `authorities_idx_1` (`username`,`authority`),CONSTRAINT `authorities_ibfk_1` FOREIGN KEY (`username`) REFERENCES `users` (`username`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;

--
-- Inserting data for table `authorities`
--

INSERT INTO `authorities` 
VALUES 
('john','ROLE_EMPLOYEE'),'ROLE_MANAGER'),'ROLE_ADMIN');

解决方法

输入如下：

username = "john"
password = "{noop}test123"

是的，数据库中显示的密码完全相同，密码也需要包含 {noop}。