tomcat+jsp訪問mysql

1. JDK 環境變量設置 (/etc/profile)

export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-amd64 
export JRE_HOME=${JAVA_HOME}/jre  
export JAVA_BIN=${JAVA_HOME}/bin  
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib  
export PATH=${JAVA_HOME}/bin:$PATH  

2. Tomcat 安裝包放入/usr/local/tomcat 目錄, 不用安裝。

tomcat 啓動：/usr/local/tomcat/bin/catalina.sh start

tomcat 關閉：/usr/local/tomcat/bin/catalina.sh stop

修改tomcat配置：

a. /usr/local/tomcat/conf/tomcat-users.xml

添加如下配置

<role rolename="manager-gui"/>
<user username="tomcat" password="tomcat" roles="manager-gui"/>

用於Manager APP使用 

b. /usr/local/tomcat/conf/server.xml 修改server配置

端口修改爲80

    <Connector port="80" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />

添加虛擬主機

      <Host name="www.test1.com"  appBase="webapps1"
            unpackWARs="true" autoDeploy="true">
        <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
               prefix="localhost_access_log." suffix=".txt"
               pattern="%h %l %u %t &quot;%r&quot; %s %b" />
      </Host>

修改/etc/hosts文件

192.168.99.101 www.test1.com

3. 官方下載 mysql-connector-java-5.1.48.tar.gz

拷貝文件./mysql-connector-java-5.1.48/mysql-connector-java-5.1.48-bin.jar 到 /usr/local/tomcat/lib目錄下

4. 靜態文件編寫 test.jsp

<%@ page contentType="text/html; charset=gb2312" %>
<%@ page language="java" %>
<%@ page import="com.mysql.jdbc.Driver" %>
<%@ page import="java.sql.*" %>
<%
 
String driverName="com.mysql.jdbc.Driver";

String userName="root";

String userPasswd="111111";
 
String dbName="credential";

String tableName="credential_info";

String url="jdbc:mysql://localhost/"+dbName+"?user="+userName+"&password="+userPasswd;
Class.forName("com.mysql.jdbc.Driver").newInstance();
Connection conn=DriverManager.getConnection(url);
Statement stmt = conn.createStatement();
String sql="SELECT * FROM "+tableName;
ResultSet rs = stmt.executeQuery(sql);
out.print("id");
out.print("|");
out.print("name");
out.print("|");
out.print("phone");
out.print("<br>");
while(rs.next()) {
out.print(rs.getString(1)+" ");
out.print("|");
out.print(rs.getString(2)+" ");
out.print("|");
out.print(rs.getString(3));
out.print("<br>");
}
out.print("<br>");
out.print("ok， Database Query Successd！");
rs.close();
stmt.close();
conn.close();
%>

6. Excute

7.Others 

HTTPS Enable

1. 生成keystore

keytool -genkey -v -alias testKey -keyalg RSA -validity 3650 -keystore test.keystore

2. 拷貝到路徑/test.keystore

3. 設置server.xml

/usr/local/tomcat/conf/server.xml

    <Connector port="443" protocol="org.apache.coyote.http11.Http11Protocol"
               maxThreads="150" SSLEnabled="true" scheme="https" secure="true"
               clientAuth="false" sslProtocol="TLS" keystoreFile="/test.keystore" keystorePass="111111" />

查看keystore信息

root@ubuntu:/# keytool -list -v -keystore test.keystore 
Enter keystore password:  
Keystore type: jks
Keystore provider: SUN

Your keystore contains 1 entry

Alias name: testkey
Creation date: Jul 31, 2019
Entry type: PrivateKeyEntry
Certificate chain length: 1
Certificate[1]:
Owner: CN=x, OU=t, O=tx, L=sh, ST=sh, C=cn
Issuer: CN=x, OU=t, O=tx, L=sh, ST=sh, C=cn
Serial number: 4ff9404b
Valid from: Wed Jul 31 16:58:42 CST 2019 until: Sat Jul 28 16:58:42 CST 2029
Certificate fingerprints:
     MD5:  E1:5D:D1:D4:09:5C:A6:05:2A:E2:7A:2F:83:24:F4:B5
     SHA1: C9:4D:FA:96:96:EC:CC:74:5B:A3:6E:7B:01:E3:E5:A6:69:87:FC:12
     SHA256: BD:EB:3C:C9:37:B3:A0:9C:FC:2B:D9:D4:5D:8C:6C:08:46:BB:06:1B:65:26:56:90:D3:01:1F:33:C9:75:D2:D4
Signature algorithm name: SHA256withRSA
Subject Public Key Algorithm: 2048-bit RSA key
Version: 3

Extensions: 

#1: ObjectId: 2.5.29.14 Criticality=false
SubjectKeyIdentifier [
KeyIdentifier [
0000: 98 8C 07 FF 38 6D 70 45   0D CE 07 04 50 39 2D 8B  ....8mpE....P9-.
0010: 06 44 0B 36                                        .D.6
]
]

*******************************************
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Warning:
The JKS keystore uses a proprietary format. It is recommended to migrate to PKCS12 which is an industry standard format using "keytool -importkeystore -srckeystore test.keystore -destkeystore test.keystore -deststoretype pkcs12".
root@ubuntu:/#