日期:2014-05-16  浏览次数:20382 次

json与java互换

下载

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json-lib依赖包:

  1. commons-beanutils-1.8.0.jar
  2. commons-collections-3.2.1.jar
  3. commons-lang-2.4.jar
  4. commons-logging-1.1.1.jar
  5. ezmorph-1.0.6.jar
  6. json-lib-2.3-jdk15.jar
  7. xom-1.2.2.jar

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java转json

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通常用可以用两个不同的类可以完成转换:JSONObject,JSONSerializer

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public class Address {

private String street;// 街道

private String city;// 城市

private int zip;// 邮编

private String tel;// 第一个电话号码

private String telTwo;// 第二个电话号码

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public Address() {

}

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public Address(String street, String city, int zip, String tel,

String telTwo) {

this.street = street;

this.city = city;

this.zip = zip;

this.tel = tel;

this.telTwo = telTwo;

}

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public String getStreet() {

return street;

}

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public void setStreet(String street) {

this.street = street;

}

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public String getCity() {

return city;

}

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public void setCity(String city) {

this.city = city;

}

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public int getZip() {

return zip;

}

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public void setZip(int zip) {

this.zip = zip;

}

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public String getTel() {

return tel;

}

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public void setTel(String tel) {

this.tel = tel;

}

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public String getTelTwo() {

return telTwo;

}

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public void setTelTwo(String telTwo) {

this.telTwo = telTwo;

}

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}

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//处用JSONObject从java转换json

public class JSONObjectTest extends TestCase {

public void testDate2Json() {

JSONObject jsonObj = JSONObject.fromObject(new Date());

System.out.println(jsonObj.toString());

}

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public void testArray2Json() {

JSONArray jarray = JSONArray.fromObject(new String[][] {

{ "one", "two" }, { "three", "four" } });

System.out.println(jarray.toString());

JSONArray arr = JSONArray.fromObject(jarray.toString());

System.out.println(((JSONArray) arr.get(1)).get(0));

}

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public void testList2Json() {

List list = new ArrayList();

list.add(new Integer(1));

list.add(new Boolean(true));

list.add(new Character('j'));

list.add(new char[] { 'j', 's', 'o', 'n' });

list.add(null);

list.add("json");

list.add(new String[] { "json", "-", "lib" });

list.add(new JSONFunction(new String[] { "i" }, "alert(i)"));

list.add(new Address("P.O BOX 54534", "Seattle, WA", 42452,

"561-832-3180", "531-133-9098"));

JSONArray arr=JSONArray.fromObject(list);

System.out.println(arr.toString(4));

arr=JSONArray.fromObject(list);