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

 Java Json/xml 序列化和反序列化： 工具JsonTools 和 simpleframework 

 

1. xml 序列化反序列化工具：simpleframework  功能非常强大，使用起来非常简单，自己可以百度一下

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：

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

直接使用：

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

xml 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://jsontools.berlios.de/。

使用介绍：

       //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：

<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

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

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

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

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; } }

 下一遍将介绍将树形数据读取成json格式

 Sunny liu

2009-11-19