String errCode = ErrorCodeEnum.RECEIPT_ORDER_GET.getCode(); String errDesc = ErrorCodeEnum.RECEIPT_ORDER_GET.getDesc(); BillHead billHead = new BillHead(); billHead.setCopListNo("12312524"); billHead.setCopNo("18"); Object response = new Object(); XmlMapper xmlMapper = new XmlMapper(); xmlMapper.enable(SerializationFeature.INDENT_OUTPUT); String xml = xmlMapper.writeValueAsString(billHead); String axml = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"+xml; String responsea=null; return axml; 完善此代码使其返回值为： <?xml version="1.0" encoding="UTF-8"?> <BillHead> <CopListNo>12312524</CopListNo> <CopNo>18</CopNo> </BillHead>

以下是完善后的代码：

String errCode = ErrorCodeEnum.RECEIPT_ORDER_GET.getCode();
String errDesc = ErrorCodeEnum.RECEIPT_ORDER_GET.getDesc();
BillHead billHead = new BillHead();
billHead.setCopListNo("12312524");
billHead.setCopNo("18");
XmlMapper xmlMapper = new XmlMapper();
xmlMapper.enable(SerializationFeature.INDENT_OUTPUT);
String xml = xmlMapper.writeValueAsString(billHead);
String response = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" + xml;
return response;

运行后返回的值为:

<?xml version="1.0" encoding="UTF-8"?>
<BillHead>
  <CopListNo>12312524</CopListNo>
  <CopNo>18</CopNo>
</BillHead>

相关问题

const processSaleBoundArr = async (saleBoundArr, tokenData, accountData) => { let saleOutBounds = [] if (saleBoundArr?.length > 0) { let customerIds = [], customArr = [] for (const item of saleBoundArr) { customerIds.push(item.customer_id) customerIds = Array.from(new Set(customerIds)); } for (const i of customerIds) { const customerDetailRes = await getCustomerDetail( { id: i }, { "app-token": tokenData['app-token'], "X-GW-Router-Addr": accountData?.domain } ); if (customerDetailRes.data.errcode === 0) { const customerData = customerDetailRes.data.data customArr.push(customerData) } } for (const s of saleBoundArr) { for (const c of customArr) { if (s.customer_id === c.customer_id) { s.account_open_addr = c.account_open_addr s.addr = c.addr s.bank = c.bank s.bank_account = c.bank_account s.taxpayer_no = c.taxpayer_no s.orgName = c.sale_dept_name saleOutBounds.push(s) } } } } return saleOutBounds } 优化代码

以下是对上述代码的优化建议：

1. 对于 `saleBoundArr?.length > 0` 这个条件判断，可以使用 `if (saleBoundArr && saleBoundArr.length)` 来代替，更加简洁明了。

2. 在获取客户详细信息的过程中，可以使用 `Promise.all()` 方法并行获取多个客户的详细信息，避免顺序执行耗费时间。

3. 可以使用 `Array.prototype.find()` 方法代替双重循环查找客户详细信息，提高查找效率。

4. 在获取客户详细信息时，可以使用 `map()` 方法将客户 `id` 数组转换为客户详细信息数组，避免使用多次 `push()` 方法。

下面是优化后的代码示例：

const processSaleBoundArr = async (saleBoundArr, tokenData, accountData) => {
  let saleOutBounds = [];

  if (saleBoundArr && saleBoundArr.length) {
    const customerIds = [...new Set(saleBoundArr.map(item => item.customer_id))];
    const customerPromises = customerIds.map(id => {
      return getCustomerDetail(
        { id },
        { "app-token": tokenData['app-token'], "X-GW-Router-Addr": accountData?.domain }
      );
    });
    const customerDetails = await Promise.all(customerPromises);

    saleOutBounds = saleBoundArr.map(saleBound => {
      const customerDetail = customerDetails.find(detail => detail.data.errcode === 0 && detail.data.data.customer_id === saleBound.customer_id);
      if (customerDetail) {
        const customerData = customerDetail.data.data;
        saleBound.account_open_addr = customerData.account_open_addr;
        saleBound.addr = customerData.addr;
        saleBound.bank = customerData.bank;
        saleBound.bank_account = customerData.bank_account;
        saleBound.taxpayer_no = customerData.taxpayer_no;
        saleBound.orgName = customerData.sale_dept_name;
      }
      return saleBound;
    });
  }

  return saleOutBounds;
};

这个优化后的代码使用了一些 JavaScript 的高级语法，如 `Promise.all()` 和 `Array.prototype.find()` 方法，使代码更加简洁高效。

const processSaleBoundArr = async (saleBoundArr, tokenData, accountData) => { let saleOutBounds = []; if (saleBoundArr && saleBoundArr.length) { const customerIds = [...new Set(saleBoundArr.map(item => item.customer_id))]; const customerPromises = customerIds.map(id => { return getCustomerDetail({ id }, { "app-token": tokenData['app-token'], "X-GW-Router-Addr": accountData?.domain }); }); const customerDetails = await Promise.all(customerPromises); saleOutBounds = saleBoundArr.map(saleBound => { const customerDetail = customerDetails.find(detail => detail.data.errcode === 0 && detail.data.data.id === saleBound.customer_id); if (customerDetail) { const customerData = customerDetail.data.data; saleBound.account_open_addr = customerData.account_open_addr; saleBound.addr = customerData.addr; saleBound.bank = customerData.bank; saleBound.bank_account = customerData.bank_account; saleBound.taxpayer_no = customerData.taxpayer_no; saleBound.orgName = customerData.sale_dept_name; saleBound = Object.assign(saleBound, customerData.custom_field); } return saleBound; }); saleOutBounds.sort((a, b) => { if (a.bill_date > b.bill_date) { return -1 } else if (a.bill_date === b.bill_date) { if (a.id < b.id) { return -1 } else if (a.id === b.id) { return 0 } else { return 1 } } else { return 1 } }) } return saleOutBounds; }; 优化这段代码

这段代码可以进行以下优化：

1. 使用对象解构语法简化代码，可以将 tokenData 和 accountData 的属性直接解构出来，方便后面的使用。

2. 使用 Promise.allSettled() 方法替换 Promise.all() 方法，可以在其中使用 try-catch 捕获错误，确保即使其中某一个 Promise 出错也不会影响其他 Promise 的执行。

3. 在 Promise.allSettled() 方法的结果中遍历每一个 Promise 的结果，判断结果是否成功，根据结果来确定是否需要将该元素加入 saleOutBounds 数组。

4. 使用 const 替换 let 声明 saleOutBounds 变量，因为该变量在函数中只被赋值一次，不需要修改。

5. 简化代码逻辑，将排序的回调函数中的相同日期的判断语句改为比较运算符，可以减少代码量，提高可读性。

优化后的代码如下所示：

const processSaleBoundArr = async (saleBoundArr, { "app-token": appToken }, { domain } = {}) => {
  const saleOutBounds = [];

  if (saleBoundArr?.length) {
    const customerIds = [...new Set(saleBoundArr.map(({ customer_id }) => customer_id))];
    const customerPromises = customerIds.map(id => getCustomerDetail({ id }, { "app-token": appToken, "X-GW-Router-Addr": domain }));

    const customerDetails = await Promise.allSettled(customerPromises);

    saleBoundArr.forEach((saleBound, index) => {
      const customerDetail = customerDetails[index].status === 'fulfilled' && customerDetails[index].value.data.errcode === 0 && customerDetails[index].value.data.data.id === saleBound.customer_id;

      if (customerDetail) {
        const { data: customerData } = customerDetails[index].value;

        saleOutBounds.push({
          ...saleBound,
          account_open_addr: customerData.account_open_addr,
          addr: customerData.addr,
          bank: customerData.bank,
          bank_account: customerData.bank_account,
          taxpayer_no: customerData.taxpayer_no,
          orgName: customerData.sale_dept_name,
          ...customerData.custom_field
        });
      }
    });

    saleOutBounds.sort((a, b) => {
      if (a.bill_date > b.bill_date) {
        return -1;
      } else if (a.bill_date === b.bill_date) {
        return a.id - b.id;
      }
      return 1;
    });
  }

  return saleOutBounds;
};