java把对象转成json_java 把对象 对象转换成json字符串 | 学步园

publicclassJSONCreateDemoActivity {

//

创建以下的JSON对象

publicString createJSONObject() {

Gsongson = newGson();

Configurationcon1 = newConfiguration();

con1.setDisplay(true);

con1.setFillColor("#FF0000");

con1.setID(1);

con1.setLineColor("#FF0000");

con1.setLineSpan(10);

con1.setLineWidth(10);

con1.setSelected(true);

Configurationcon2 = newConfiguration();

con2.setDisplay(true);

con2.setFillColor("#FF0000");

con2.setID(1);

con2.setLineColor("#FF0000");

con2.setLineSpan(10);

con2.setLineWidth(10);

con2.setSelected(true);

Configurationcon3 = newConfiguration();

con3.setDisplay(true);

con3.setFillColor("#FF0000");

con3.setID(1);

con3.setLineColor("#FF0000");

con3.setLineSpan(10);

con3.setLineWidth(10);

con3.setSelected(true);

Configurationcon4 = newConfiguration();

con4.setDisplay(true);

con4.setFillColor("#FF0000");

con4.setID(1);

con4.setLineColor("#FF0000");

con4.setLineSpan(10);

con4.setLineWidth(10);

con4.setSelected(true);

Listlist = newArrayList();

list.add(con1);

list.add(con2);

list.add(con3);

list.add(con4);

StringjsonString=gson.toJson(list);

return jsonString;

}

}

=============================

效果格式：

[{"ID":1,"LineColor":"#FF0000","FillColor":"#FF0000","LineSpan":10,"LineWidth":1,"Display":true,"Selected":true},

{"ID":2,"LineColor":"#FF0000","FillColor":"#FF0000","LineSpan":10,"LineWidth":1,"Display":true,"Selected":true},

{"ID":3,"LineColor":"#FF0000","FillColor":"#FF0000","LineSpan":10,"LineWidth":1,"Display":true,"Selected":true},

{"ID":4,"LineColor":"#FF0000","FillColor":"#FF0000","LineSpan":10,"LineWidth":1,"Display":true,"Selected":true}

]