AlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipay.com/gateway.do", "app_id", "your private_key", "json", "GBK", "alipay_public_key", "RSA");
AlipayEcoEduKtSchoolinfoModifyRequest request = new AlipayEcoEduKtSchoolinfoModifyRequest();
request.setBizContent("{\n" +
"  \"school_name\":\"学校名称\",\n" +
"  \"school_stdcode\":\"\",\n" +
"  \"school_type\":\"2\",\n" +
"  \"province_code\":\"330000\",\n" +
"  \"province_name\":\"浙江省\",\n" +
"  \"city_code\":\"330100\",\n" +
"  \"city_name\":\"杭州市\",\n" +
"  \"district_code\":\"330106\",\n" +
"  \"district_name\":\"西湖区\",\n" +
"  \"isv_name\":\"XXXXXXXXX有限公司\",\n" +
"  \"isv_notify_url\":\"http://XXXXXXXXXXX\",\n" +
"  \"isv_pid\":\"2088XXXXXXXX\",\n" +
"  \"school_pid\":\"2088XXXXXXXXXXX\",\n" +
"  \"isv_phone\":\"XXXXXXXXXXX\",\n" +
"}"); //设置业务参数
AlipayEcoEduKtSchoolinfoModifyResponse response = alipayClient.execute(request);
System.out.println("pre return:" + response.getSchoolNo());

AlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipay.com/gateway.do", "app_id", "your private_key", "json", "GBK", "alipay_public_key", "RSA");
AlipayEcoEduKtBillingSendRequest request = new AlipayEcoEduKtBillingSendRequest();
request.setBizContent("{\n" +
"  \"end_enable\": \"N\",\n" +
"  \"partner_id\": \"2088XXXXXXX\",\n" +
"  \"student_identify\":\"611XXXXXXXXX\",\n" +
"  \"charge_item\":[ {\"item_name\":\"课本费\",\"item_price\":160.00}],\n" +
"  \"gmt_end\": \"2019-06-16 15:22:06\",\n" +
"  \"out_trade_no\": \"SF2XXXXXXXXX\",\n" +
"  \"child_name\": \"XXXXX\",\n" +
"  \"amount\": 160.00,\n" +
"  \"school_pid\": \"208XXXXXXX\",\n" +
"  \"school_no\": \"330XXXXXXX\",\n" +
"  \"class_in\": \"专用班级\",\n" +
"  \"charge_bill_title\": \"课本费\"\n" +
"}"); //设置业务参数
AlipayEcoEduKtBillingSendResponse response = alipayClient.execute(request);
System.out.println("pre return:" + response.getSchoolNo());
if (response.isSuccess()) {
    System.out.println("调用成功");
} else {
    System.out.println("调用失败");
}

AlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipay.com/gateway.do", "app_id", "your private_key", "json", "GBK", "alipay_public_key", "RSA");
AlipayEcoEduKtBillingModifyRequest request = new AlipayEcoEduKtBillingModifyRequest();
request.setBizContent("{\" +
"\"trade_no\":\"20XXXXXXXXXXX\"," +
"\"out_trade_no\":\"57XXXXXXXXXXXXX\"," +
"\"status\":\"1\"" +
"}"); //设置业务参数
AlipayEcoEduKtBillingModifyResponse response = alipayClient.execute(request);
if (response.isSuccess()) {
    System.out.println("调用成功");
} else {
    System.out.println("调用失败");
}

AlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipay.com/gateway.do", "app_id", "your private_key", "json", "GBK", "alipay_public_key", "RSA");
AlipayEcoEduKtBillingQueryRequest request = new AlipayEcoEduKtBillingQueryRequest();
request.setBizContent("{ \n" +
"\"isv_pid\":\"2088XXXXXXXX\", \n" +
"\"school_pid\":\"20885XXXXXXXXX\", \n" +
"\"out_trade_no\":\"XXXXXXXXXXXXXXXX\" \n" +
"}");
AlipayEcoEduKtBillingQueryResponse response = alipayClient.execute(request);
System.out.println(response.getOrderStatus());
if (response.isSuccess()) {
    System.out.println("调用成功");
} else {
    System.out.println("调用失败");
}