如何在wso2中设置十六进制的类型并将十六进制转换为字符串

Question

我有这样的源代码

<api context="/EtheriumTransaction" name="EtheriumTransaction" xmlns="http://ws.apache.org/ns/synapse">
    <resource methods="POST">
        <inSequence>
            <log>
                <property expression="json-eval($)" name="payload"/>
            </log>
            <!-- 
            <log>
                <property expression="json-eval($.id)" name="idusr"/>
            </log>
             -->
             <!-- Get Value of Json -->
            <property expression="json-eval($.id)" name="idusr" scope="default" type="STRING"/>
            <property expression="json-eval($.type)" name="types" scope="default" type="STRING"/>
            <property expression="json-eval($.from_address)" name="address_from" scope="default" type="STRING"/>
            <property expression="json-eval($.to_address)" name="address_to" scope="default" type="STRING"/>
            <property expression="json-eval($.amount)" name="amount" scope="default" type="STRING"/>
           <!-- Convert Amount will send and fee become hex  -->
            <script language="js">
            var log = mc.getServiceLog();
            var amountString = mc.getProperty("amount");
            var amountFloat = parseFloat(amountString);
            var feeString   = "0.1";
            var feeFloat = parseFloat(feeString);
            var newAmount = amountFloat - feeFloat;
            log.info("New Amount : " + newAmount );
            var feeHex = ("0x" + feeFloat.toString(16));
            var newAmountHex = ("0x"+ newAmount.toString(16));
            log.info("New AmountHex : " + newAmountHex  + "feeHex" + feeHex );
            mc.setProperty("newAmountHexs", newAmountHex);
            </script>
            <log>
            <property name="newAmount_hex" scope="default" type="String" expression="$ctx:newAmountHexs" />
            </log>
        </inSequence>
        <outSequence/>
        <faultSequence/>
    </resource>
</api>

从脚本中我可以得到十六进制的值。但当我想使用wso2属性登录时，我无法获取十六进制值。。我尝试使用type=“STRING”无法获取值。我的问题是如何获得wso2中十六进制的值？

在我检查后，问题是wso2无法为十六进制添加属性。。所以我需要转换我的变量newAmountHex=（“0x”newAmount.toString（16））；变成字符串值

我用过这个

var newAmountHexString=hex_to_ascii（newAmountHex）；函数hex_to_ascii（str1）{var hex=str1.toString（）； var str = ''; （var n=0； n

但我在（var n=0；n）中得到了错误

[2020-09-03 04:11:16,006] [EI-Core]  INFO - CommonScriptMessageContext New Amount : 9.9
[2020-09-03 04:11:16,008] [EI-Core]  INFO - CommonScriptMessageContext New AmountHex : 0x9.e666666666668feeHex0x0.1999999999999a
[2020-09-03 04:11:16,009] [EI-Core]  INFO - LogMediator To: /EtheriumTransaction, MessageID: urn:uuid:ccc5bd5d-99d4-4d82-9ae3-87252d5c2af8, Direction: request, newAmount_hex = 

Answer 1

wso2有时会表现得很怪异，但要想在房产中获得价值，你需要添加。toString（）位于值的末尾，将其设置为属性。

mc.setProperty("newAmountHexs", newAmountHex.toString());

这对我有用：）