一、使用openssl生成ca证书
1、下载 openssl安装包和源码，如下图https://oomake.com/download/openssl
2、安装Win64 OpenSSL v1.0.1j
3、解压源码
解压openssl-1.0.1j.tar.gz，找到\openssl-1.0.1j\apps目录，拷贝demoCA目录和openssl.cnf文件到Openssl的安装目录下的bin目录下（即C:\OpenSSL-Win64\bin\）
二、使用openssl生成证书：
依次执行下述命令。
（一）生成CA证书
1.创建私钥：
D:\OpenSSL-Win64\bin>openssl genrsa -out ca/ca-key.pem 1024
2.创建证书请求：
D:\OpenSSL-Win64\bin>openssl req -new -out ca/ca-req.csr -key ca/ca-key.pem -config openssl.cnf
-----
Country Name (2 letter code) [AU]:CN
State or Province Name (full name) [Some-State]:BJ
Locality Name (eg, city) []:BJ
Organization Name (eg, company) [Internet Widgits PtyLtd]:ple
Organizational Unit Name (eg, section) []:live
Common Name (eg, YOUR name) []:root
Email Address []:
Please enter the following 'extra' attributes
to be sent with your certificate request
A challenge password []:
An optional company name []:
3.自签署证书：
D:\OpenSSL-Win64\bin>openssl x509 -req -in ca/ca-req.csr -out ca/ca-cert.pem -signkey ca/ca-key.pem -days3650
4.将证书导出成浏览器支持的.p12格式：
D:\OpenSSL-Win64\bin>openssl pkcs12 -export -clcerts -in ca/ca-cert.pem -inkey ca/ca-key.pem -out ca/ca.p12
密码：passca
（二）生成server证书
1.创建私钥：
D:\OpenSSL-Win64\bin>openssl genrsa -out server/server-key.pem 1024
2.创建证书请求：
D:\OpenSSL-Win64\bin>openssl req -new -out server/server-req.csr -key server/server-key.pem -config openssl.cnf
-----
Country Name (2 letter code) [AU]:CN
State or Province Name (full name) [Some-State]:BJ
Locality Name (eg, city) []:BJ
Organization Name (eg, company) [Internet Widgits PtyLtd]:ple
Organizational Unit Name (eg, section) []:live
Common Name (eg, YOUR name) []:localhost 注释：一定要写服务器所在的ip地址//红色这里是本机测试，所以我写localhost
Email Address []:
Please enter the following 'extra' attributes
to be sent with your certificate request
A challenge password []:
An optional company name []:
3.自签署证书：
D:\OpenSSL-Win64\bin>opensslx509 -req -in server/server-req.csr -out server/server-cert.pem -signkeyserver/server-key.pem -CA ca/ca-cert.pem -CAkey ca/ca-key.pem -CAcreateserial-days 3650
4.将证书导出成浏览器支持的.p12格式：
D:\OpenSSL-Win64\bin>opensslpkcs12 -export -clcerts -in server/server-cert.pem -inkey server/server-key.pem-out server/server.p12
密码：passca
（三）生成client证书
1.创建私钥：
D:\OpenSSL-Win64\bin>openssl genrsa -out client/client-key.pem 1024
2.创建证书请求：
D:\OpenSSL-Win64\bin>openssl req -new -out client/client-req.csr -key client/client-key.pem -config openssl.cnf
-----
Country Name (2 letter code) [AU]:CN
State or Province Name (full name) [Some-State]:BJ
Locality Name (eg, city) []:BJ
Organization Name (eg, company) [Internet Widgits PtyLtd]:ple
Organizational Unit Name (eg, section) []:live
Common Name (eg, YOUR name) []:client
Email Address []:
Please enter the following 'extra' attributes
to be sent with your certificate request
A challenge password []:
An optional company name []:
3.自签署证书：
D:\OpenSSL-Win64\bin>openssl x509 -req -in client/client-req.csr -out client/client-cert.pem -signkeyclient/client-key.pem -CA ca/ca-cert.pem -CAkey ca/ca-key.pem -CAcreateserial -days 3650
4.将证书导出成浏览器支持的.p12格式：
D:\OpenSSL-Win64\bin>openssl pkcs12 -export -clcerts-in client/client-cert.pem -inkey client/client-key.pem -out client/client_err.p12
密码：passca
5. 生成客户端证书导出成浏览器支持的.p12格式（用于导入浏览器）：
D:\OpenSSL-Win64\bin>openssl pkcs12 -export -clcerts -in ca/ca-cert.pem -inkey ca/ca-key.pem -outclient/client.p12
密码：passca
（四）根据ca证书生成jks文件
D:\OpenSSL-Win64\bin>keytool -keystore D:/OpenSSL-Win64/bin/jks/truststore.jks -keypass 222222 -storepass 222222 -alias ca -import -trustcacerts -file D:/OpenSSL-Win64/bin/ca/ca-cert.pem
（五）配置tomcat ssl
修改conf/server.xml。配置如下。xml 代码
默认情况下<Connector port="8443"……/>是被注释的，配置时需把“<!-- -->”去掉，然后对其节点进行相应的修改，需区分tomcat版本来修改，同时将原来的tomcat端口8080或者80的注释掉
<Connector port="443" protocol="org.apache.coyote.http11.Http11Protocol" maxThreads="150" SSLEnabled="true" scheme="https" secure="true" clientAuth="false" sslProtocol="TLS" keystoreFile="server.p12" keystorePass="Qdgeng12345" keystoreType="PKCS12" truststoreFile="truststore.jks" truststorePass="222222" truststoreType="JKS" SSLCertificateFile="../bin/server-cert.pem" SSLCertificateKeyFile="../bin/server-key.pem"/>
这里使用到了四个文件，各个文件都是在前面的步骤中生成的。
将server.p12和truststore.jks这两个文件需要放在tomcat的根目录下（如D:\application\tomcat）。
将server-cert.pem和server-key.pem默认是放在tomcat的bin文件夹下的（如D:\application\tomcat\bin）。
（六）验证ssl配置是否正确
访问系统http://localhost :8443/usm。如图：
（七）导入证书
将ca/ca.p12，client/client.p12分别导入到IE中去（打开IE->;Internet选项->内容->证书）。
ca.p12导入至受信任的根证书颁发机构，client.p12导入至个人。
重新访问系统。
注：1、细心的不难发现生成client.p12跟ca.p12是一样的，我测试时发现导入正常方式的client_err.p12不能正常访问系统，导入ca.p12能正常访问，有了解的大神帮助解决下。
