Java Json/xml 序列化和反序列化工具：JsonTools 和 simpleframework【附带实例】

Json序列化：将java bean转换成Json字符串；Json反序列化：将Json字符串转换成java bean。

xml序列化：将java bean转换成xml文件；xml反序列化：将xml文件转换成java bean。

1. xml 序列化反序列化工具：simple framework  功能非常强大，使用起来非常简单。在这里可以下载到它：http://download.csdn.net/detail/ptzrbin/5327967

使用方法：首先根据xml文件建好java bean ，可以是非常复杂的java bean。  对应的xml文件和java bean 见文章尾部。

导入：

[java]
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import org.simpleframework.xml.Serializer;  
import org.simpleframework.xml.core.Persister;  

import org.simpleframework.xml.Serializer;
import org.simpleframework.xml.core.Persister;

直接使用：

[java]
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File file = new File("c://mystd.xml");  
  Serializer serializer = new Persister();  
//反序列化   
  Bean rule=serializer.read(Bean.class, file);  
//序列化   
serializer.write(rule, file);  

File file = new File("c://mystd.xml");
Serializer serializer = new Persister();
//反序列化
Bean rule=serializer.read(Bean.class, file);
//序列化
serializer.write(rule, file);

下面主要介绍json的序列化反序列化 工具

2.Json 工具

Json序列化反序列化工具：JsonTools
JsonTools是一个不错的JSON序列化和反序列化功能包，在这里可以下载到它：http://download.csdn.net/detail/ptzrbin/5327972
使用介绍：

[java]
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//序列化   
JSONValue jsonValue = JSONMapper.toJSON( bean);     
String jsonStr = jsonValue.render(true);   //是否格式化  
System.out.println(jsonStr);    
  
//反序列化    
JSONParser parser = new JSONParser(new StringReader(jsonStr));     
L2Rule bean = (L2Rule) JSONMapper.toJava(parser.nextValue(), L2Rule.class);    

//序列化
JSONValue jsonValue = JSONMapper.toJSON( bean);
String jsonStr = jsonValue.render(true);   //是否格式化
System.out.println(jsonStr);

//反序列化
JSONParser parser = new JSONParser(new StringReader(jsonStr));
L2Rule bean = (L2Rule) JSONMapper.toJava(parser.nextValue(), L2Rule.class);

 

原始xml文件：

[html]
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<L2Rule>  
<Sheet Type="BS">   
 <Table>   
  <Row ItemName="Total assets" USID="USGB123450" Level="0"/>   
  <Row ItemName="Total current assets" USID="USGB123451"  Level="1"/>   
  <Row ItemName="Cash and cash equivalents" USID="USGB123452" Level="2" />   
  <Row ItemName="Accounts receivable, net of allowance for bad debts of " USID="USGB123453" Level="2" />   
  <Row ItemName="Current assets" USID="USGB123454" Level="2" />   
    </Table>   
</Sheet>  
</L2Rule>  

<L2Rule>
<Sheet Type="BS">
<Table>
<Row ItemName="Total assets" USID="USGB123450" Level="0"/>
<Row ItemName="Total current assets" USID="USGB123451"  Level="1"/>
<Row ItemName="Cash and cash equivalents" USID="USGB123452" Level="2" />
<Row ItemName="Accounts receivable, net of allowance for bad debts of " USID="USGB123453" Level="2" />
<Row ItemName="Current assets" USID="USGB123454" Level="2" />
</Table>
</Sheet>
</L2Rule>

解析后的json：
{"sheet":[{"tables":{"rows":[{"itemName":"Total assets","level":"0","usid":"USGB123450"},{"itemName":"Total current assets","level":"1","usid":"USGB123451"},{"itemName":"Cash and cash equivalents","level":"2","usid":"USGB123452"},{"itemName":"Accounts
receivable, net of allowance for bad debts of ","level":"2","usid":"USGB123453"},{"itemName":"Current assets","level":"2","usid":"USGB123454"}]},"type":"BS"}]}

 加格式：
{

   "sheet" :

      [

         {

            "tables" :

               {

                  "rows" :

                     [

                        {

                           "itemName" : "Total assets",

                           "level" : "0",

                           "usid" : "USGB123450"

                        },

                        {

                           "itemName" : "Total current assets",

                           "level" : "1",

                           "usid" : "USGB123451"

                        },

                        {

                           "itemName" : "Cash and cash equivalents",

                           "level" : "2",

                           "usid" : "USGB123452"

                        },

                        {

                           "itemName" : "Accounts receivable, net of allowance for bad debts of ",

                           "level" : "2",

                           "usid" : "USGB123453"

                        },

                        {

                           "itemName" : "Current assets",

                           "level" : "2",

                           "usid" : "USGB123454"

                        }

                     ]

               },

            "type" : "BS"

         }

      ]

}

对应的bean：

L2Rule.java

[java]
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import org.simpleframework.xml.ElementList;  
import org.simpleframework.xml.Root;  
  
@Root(name="L2Rule")  
public class L2Rule  
{  
    @ElementList(name="Sheet",required=false,inline=true)  
    public List<Sheet> sheet = new LinkedList<Sheet>();  
  
    public List<Sheet> getSheet()  
    {  
        return sheet;  
    }  
  
    public void setSheet(List<Sheet> sheet)  
    {  
        this.sheet = sheet;  
    }  
  
      
}  

import org.simpleframework.xml.ElementList;
import org.simpleframework.xml.Root;

@Root(name="L2Rule")
public class L2Rule
{
@ElementList(name="Sheet",required=false,inline=true)
public List<Sheet> sheet = new LinkedList<Sheet>();

public List<Sheet> getSheet()
{
return sheet;
}

public void setSheet(List<Sheet> sheet)
{
this.sheet = sheet;
}

}

Sheet.java

[java]
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import org.simpleframework.xml.Attribute;  
import org.simpleframework.xml.Element;  
import org.simpleframework.xml.Root;  
  
@Root(name="Sheet")  
public class Sheet  
{  
    @Element(name="Table",required=false)  
    public Table tables = new Table();  
      
    @Attribute(name="Type",required=false)  
    public String type;  
  
      
  
    public Table getTables()  
    {  
        return tables;  
    }  
  
    public void setTables(Table tables)  
    {  
        this.tables = tables;  
    }  
  
    public String getType()  
    {  
        return type;  
    }  
  
    public void setType(String type)  
    {  
        this.type = type;  
    }  
}  

import org.simpleframework.xml.Attribute;
import org.simpleframework.xml.Element;
import org.simpleframework.xml.Root;

@Root(name="Sheet")
public class Sheet
{
@Element(name="Table",required=false)
public Table tables = new Table();

@Attribute(name="Type",required=false)
public String type;

public Table getTables()
{
return tables;
}

public void setTables(Table tables)
{
this.tables = tables;
}

public String getType()
{
return type;
}

public void setType(String type)
{
this.type = type;
}
}

Table.java

[java]
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import java.util.LinkedList;  
import java.util.List;  
  
import org.simpleframework.xml.ElementList;  
import org.simpleframework.xml.Root;  
  
@Root(name="Table")  
public class Table  
{  
    @ElementList(name="Row",required=false,inline=true)  
    public List<Row> rows = new LinkedList<Row>();  
  
    public List<Row> getRows()  
    {  
        return rows;  
    }  
  
    public void setRows(List<Row> rows)  
    {  
        this.rows = rows;  
    }  
}  

import java.util.LinkedList;
import java.util.List;

import org.simpleframework.xml.ElementList;
import org.simpleframework.xml.Root;

@Root(name="Table")
public class Table
{
@ElementList(name="Row",required=false,inline=true)
public List<Row> rows = new LinkedList<Row>();

public List<Row> getRows()
{
return rows;
}

public void setRows(List<Row> rows)
{
this.rows = rows;
}
}

Row.java

[java]
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import org.simpleframework.xml.Attribute;  
import org.simpleframework.xml.Root;  
  
@Root(name="Row")  
public class Row  
{  
    @Attribute(name="ItemName",required=true)  
    public String itemName;  
    @Attribute(name="USID",required=true)  
    public String usid;  
    @Attribute(name="Level",required=true)  
    public String level;  
    public String getItemName()  
    {  
        return itemName;  
    }  
    public void setItemName(String itemName)  
    {  
        this.itemName = itemName;  
    }  
    public String getUsid()  
    {  
        return usid;  
    }  
    public void setUsid(String usid)  
    {  
        this.usid = usid;  
    }  
    public String getLevel()  
    {  
        return level;  
    }  
    public void setLevel(String level)  
    {  
        this.level = level;  
    }  
      
}