如何使用JNI在C中获取jobject的字符串值?
我的jobject看起来像如何使用JNI在C中获取jobject的字符串值?,c,object,java-native-interface,C,Object,Java Native Interface,我的jobject看起来像{“A”,“B”,1},现在我想得到它的字符串值 目前我有以下代码: class clazz = (*env)->FindClass(env, "model/Spieler"); jmethodID midVorname = (*env)->GetMethodID(env, clazz, "getVorname", "()Ljava/lang/String;"); jmethodID midNachname = (*env)->GetMethodID(
{“A”,“B”,1}
,现在我想得到它的字符串值
目前我有以下代码:
class clazz = (*env)->FindClass(env, "model/Spieler");
jmethodID midVorname = (*env)->GetMethodID(env, clazz, "getVorname", "()Ljava/lang/String;");
jmethodID midNachname = (*env)->GetMethodID(env, clazz, "getNachname", "()Ljava/lang/String;");
jmethodID midTrikotnummer = (*env)->GetMethodID(env, clazz, "getTrikotnummer", "()I");
char vorname[SIZE];
char nachname[SIZE];
int trikotnummer;
jobject newObj;
link = (Spieler*) malloc(sizeof(Spieler));
newObj = (*env)->GetObjectArrayElement(env, arr, i);
trikotnummer = (*env)->CallIntMethod(env, newObj, midTrikotnummer);
对于Integer
它的工作原理与上面类似,但我不知道如何通过jmethodID获取字符串
值。您有什么建议吗?您可以尝试以下方法:
/* Access the i-th element in the array */
jobject obj = (*env)->GetObjectArrayElement(env, arr, i);
/* Call the method */
jobject resultString = (*env)->CallObjectMethod(env, obj, /* method ID */ midVorname);
/* Get a C-style string */
const char* str = (*env)->GetStringUTFChars(env, (jstring) resultString, NULL);
/* Use the string ... */
/* Clean up */
(*env)->ReleaseStringUTFChars(env, resultString, str);
您需要在哪个字符编码中输入字符串值?