Question

我如何用Java做到这一点？我有这个XML ......

我想做的就是......

如果TypeCode = Country＆amp; Code1 = Ger 返回德国（Value1的值）

如果TypeCode = Country＆amp; Code1 = De 返回Deutschland（Value2的值）

如果TypeCode = Country＆amp;＆amp; （Code1 = De＆amp; Code1 = Ger）返回德国（Value1的值）AND 返回Deutschland（Value2的值）

<?php
 require_once 'dbconfig.php';


if($_POST)
{
    $pname = $_POST['pname']; 
    $gname = $_POST['gname'];
    $saledate = $_POST['saledate'];
    $quantity = $_POST['quantity'];
    $actualprice = $_POST['actualprice'];
    $sellprice = $_POST['sellprice'];
    $profit = $_POST['profit'];
    $carryO = $_POST['carryO'];
    $sells = $_POST['sells'];
    $expense = $_POST['expense'];
    try{

        $stmt = $db_con->prepare("INSERT INTO tblsales(pname,gname,saledate,quantity,actualprice,sellprice,carryO,sells,expense,profit) 
                                 VALUES(:upname,:ugname,:usaledate,:uquantity,:uactualprice,:usellprice,:ucarryO,:usells,:uexpense,:uprofit)");
        $stmt->bindParam(":upname", $pname);
        $stmt->bindParam(":ugname", $gname);
        $stmt->bindParam(":usaledate", $saledate);
        $stmt->bindParam(":uquantity", $quantity);
        $stmt->bindParam(":uactualprice", $actualprice);
        $stmt->bindParam(":usellprice", $sellprice);
        $stmt->bindParam(":ucarryO", $carryO);
        $stmt->bindParam(":usells", $sells);
        $stmt->bindParam(":uexpense", $expense);
        $stmt->bindParam(":uprofit", $profit);
        if($stmt->execute())
        {
            echo "Successfully Added";
        }
        else{
            echo "Query Problem";
        }   
    }
    catch(PDOException $e){
        echo $e->getMessage();
    }
}

    ?>

 <div id="dis">

</div>


 <form method='post' id='emp-SaveForm' action="#">

<table class='table table-bordered'>

    <tr>
        <td>Product Name</td>
        <td><input type='text'name='pname' class='form-control'  required>  </td>
    </tr>

    <tr>
        <td>Guest Name</td>
        <td><input type='text'  name='gname' class='form-control'  required> </td>
    </tr>

       <tr>
        <td>Sale Date</td>
        <td><input type='date' name='saledate' class='form-control'  required></td>
      </tr>

        <tr>
        <td>Quantity</td>
        <td><input type='text' name='quantity' class='form-control'  id="quantity"  required></td>
       </tr>

        <tr>
        <td>Actual Price</td>

        <td>
        <input type='text'name ="actualprice" id="aaprice"   class='form-control'  required></td>
    </tr>

    <tr>
        <td>Selling Price</td>
        <td>
        <input type='text' name='sellprice' class='form-control' type = "number"   id="ssprice"    required></td>
    </tr>

     <tr>
        <td>Carry Over</td>
        <td><input type='text' name='carryO' class='form-control'  required></td>
    </tr>

     <tr>
        <td>Sells</td>
        <td><input type='text' name='sells' class='form-control'  required></td>
    </tr>

     <tr>
        <td>Expense</td>
        <td><input type='text' name='expense' class='form-control'  required></td>
    </tr>



      <tr>
        <td>Profit</td>
        <td><input  name='profit' class='form-control' type = "number"  id="profit"  required></td>
    </tr>


    <tr>
        <td colspan="2">
        <button type="submit" class="btn btn-primary" name="btn-save" id="btn-save">
        <span class="glyphicon glyphicon-plus"></span> Save this Record
        </button>  
        </td>
    </tr>

</table>

任何代码段都会有帮助

Answer 1

在Java中执行此操作的最强大方法可能是使用JAX-B（http://www.oracle.com/technetwork/articles/javase/index-140168.html）。使用JAX-B可以获得很多优势，其中最重要的是

自动编组/将POJO转换为XML文件
从XML文件自动解组到POJO
XSD验证（如果使用XSD架构）
从XSD文件生成POJO类

现在，您的示例的简单实现将是

实体POJO

    **import java.util.ArrayList;
import java.util.List;

import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;

@XmlRootElement(name="Entities")
public class Entity {

    @XmlElement(required = true)
    private List<EntityTyp> EntityType ;


     public List<EntityTyp> getEntityType() {
            if (EntityType == null) {
                EntityType = new ArrayList<EntityTyp>();
            }
            return EntityType;
        }
}**

EntityTyp POJO

    import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlElement;

public class EntityTyp {
     @XmlAttribute(name = "TypeCode", required = true)
        private String TypeCode; 
         @XmlElement 
        private String Code1;
            @XmlElement 
        private String Code2;
             @XmlElement 
        private String Value1;
             @XmlElement 
        private String Value2;
             @XmlElement 
        private String Default;

        public String getCode1(){
            return Code1;
        }
        public String getCode2(){
            return Code2;
        }
        public String getVal1(){
            return Value1;
        }
        public String getVal2(){
            return Value2;
        }
        public String getDefault(){
            return Default;
        }
        public String getTypeCode(){
            return TypeCode;
        }
        public void setCode1(String code){
            Code1 = code;
        }
        public void setCode2(String code){
            Code2 = code;
        }
        public void setVal1(String val){
            Value1 = val;
        }
        public void setVal2(String val){
            Value2 = val;
        }
        public void setDefault(String val){
            Default = val;
        }
        public void setTypeCode(String val){
            TypeCode = val;
        }


}

最后，EntityTester（用于测试）

import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Unmarshaller;


import jaxb.schema.src.Entities;


    *import javax.xml.bind.JAXBContext;
    import javax.xml.bind.JAXBException;
    import javax.xml.bind.Unmarshaller;

        public class EntityTester {

            public static void main(String[] args) throws JAXBException {
                // TODO Auto-generated method stub
             final String ENT_XML = "C:\\test\\Entity.xml";

                JAXBContext context = JAXBContext.newInstance(Entity.class);

                  Unmarshaller um = context.createUnmarshaller();

                  Entity ent = (Entity) um.unmarshal(new File(ENT_XML));

                  for( EntityTyp et : ent.getEntityType() ){
                      System.out.println( et.getCode1());
                      System.out.println( et.getVal1());
                  }
            }

        }*

输出

 Ger
Germany
Ger
Germany

确保创建一个JAXB项目，以便拥有所有依赖项（jar）

以Java方式查询XML

1 个答案: