JNI -- Java calls C/C ++ Functions

I. IntroductionIi. Purpose: Calling C/C ++ code in Java code 3. Implementation: Assume that our Java program is J2C. java, the C program is J2C. c, and the communication function between Java and C is called write2proc. 4. Operation

V. Specific Process

1.Compile and compile J2C. java

                                                         System.loadLibrary("j2c"           }                  System.err.println( "Cannot load J2C library:\n " +                     write2proc(                                 RuntimeMXBean runtime =            String info =             index = info.indexOf("@"              (index != -1                  pid = Integer.parseInt(info.substring(0                                  Thread.sleep(8000           }     }

 

,

  #include <jni.h>     _Included_J2C                 (JNIEnv *     

 

 #include <stdio.h>  #include   JNIEXPORT  JNICALL Java_J2C_write2proc(JNIEnv *        printf(          }

 

2. "error: request for member 'getstringutfchars' in something not a structure or union" encountered during JNI Development"

How to resolve java. lang. UnsatisfiedLinkError