小编suf*_*ala的帖子

我使用RSA算法生成公钥和私钥

final KeyPairGenerator keyGen = KeyPairGenerator.getInstance(ALGORITHM);
keyGen.initialize(1024);
final KeyPair key = keyGen.generateKeyPair();
final PrivateKey privateKey=key.getPrivate();
final PublicKey publickey=key.getPublic();

之后,使用Base64编码器对这些密钥进行编码并将其保存到数据库中.

如何在java中将此编码的字符串转换为私有和公钥类型是解密文件.使用Base64Decoder解码此String时将获得一个字节数组.如何将此Byte数组转换为公钥或私钥类型？

我尝试使用Web应用程序从java类加载applicationContext.xml

  ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");

和

ApplicationContext context = new FileSystemXmlApplicationContext("applicationContext.xml");

我的问题是如何从java类加载applicationContext.xml.applicationContext.xml是WEB-INF.那可能吗？

我的应用程序中有两个函数,执行查询后得到异常

java.lang.ClassCastException: [Ljava.lang.Object; 
java.lang.ClassCastException: [Ljava.lang.Object;
    at org.openmrs.module.scheduler.impl.SchedulerDWR.fetchUserStatus(SchedulerDWR.java:2011)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.directwebremoting.impl.ExecuteAjaxFilter.doFilter(ExecuteAjaxFilter.java:34)
    at org.directwebremoting.impl.DefaultRemoter$1.doFilter(DefaultRemoter.java:428)
    at org.directwebremoting.impl.DefaultRemoter.execute(DefaultRemoter.java:431)
    at org.directwebremoting.impl.DefaultRemoter.execute(DefaultRemoter.java:283)
    at org.directwebremoting.servlet.PlainCallHandler.handle(PlainCallHandler.java:52)
    at org.directwebremoting.servlet.UrlProcessor.handle(UrlProcessor.java:101)
    at org.directwebremoting.servlet.DwrServlet.doPost(DwrServlet.java:146)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:718)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.openmrs.web.MyTimerFilter.doFilter(MyTimerFilter.java:69)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.openmrs.web.filter.GZIPFilter.doFilterInternal(GZIPFilter.java:61)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.openmrs.module.web.filter.ModuleFilterChain.doFilter(ModuleFilterChain.java:77)
    at org.openmrs.module.web.filter.ModuleFilter.doFilter(ModuleFilter.java:59)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.openmrs.web.filter.OpenmrsFilter.doFilterInternal(OpenmrsFilter.java:112)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:97)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76) …