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java中判断Object对象类型

2013-11-08 19:32 423 查看
Object param = params.get(i);
if (param instanceof Integer) {
int value = ((Integer) param).intValue();
prepStatement.setInt(i + 1, value);
} else if (param instanceof String) {
String s = (String) param;
prepStatement.setString(i + 1, s);
} else if (param instanceof Double) {
double d = ((Double) param).doubleValue();
prepStatement.setDouble(i + 1, d);
} else if (param instanceof Float) {
float f = ((Float) param).floatValue();
prepStatement.setFloat(i + 1, f);
} else if (param instanceof Long) {
long l = ((Long) param).longValue();
prepStatement.setLong(i + 1, l);
} else if (param instanceof Boolean) {
boolean b = ((Boolean) param).booleanValue();
prepStatement.setBoolean(i + 1, b);
} else if (param instanceof Date) {
Date d = (Date) param;
prepStatement.setDate(i + 1, (Date) param);
}
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