android logcat输出json长度不足

需求：希望调试阶段能够看到日志信息，如进行网络请求则输出返回的json串，但是当json过长时log打印不全，所以进行如下处理：

String readData = response.body();
            if(readData.length()>0){
                readData = readData.replaceAll(",",",\n");
                readData = readData.replaceAll("\\[","[\n");
                readData = readData.replaceAll("\\]","\n]");
                readData = readData.replaceAll("\\{","{\n");
                readData = readData.replaceAll("\\}","\n}");
                int start = 0;
                int maxLog = 500;
                LogUtil.i("realbody:");
                while (readData.length()>start){
                    String temp = "";
                    if(readData.length()>start+maxLog){
                        temp = readData.substring(start,start+maxLog);
                    }else{
                        temp = readData.substring(start);
                    }
                    int index = getBestIndex(temp);
                    if(index!=-1 && temp.length()==maxLog && index < temp.length())
                        temp = readData.substring(start,start+index);
                     else
                        index = temp.length()-1;
                    start =start+index+1;
                    LogUtil.i(temp);
                }
            }

private int getBestIndex(String temp) {
        int index = temp.lastIndexOf("}");
        int index2 = temp.lastIndexOf("]");
        int index3 = temp.lastIndexOf(",")+1;
        return

代码解析：

1.遇到逗号，[,],{,}进行换行（方便看，如果讨厌换行太多，则可以把逗号那个去掉）。

readData = readData.replaceAll(",",",\n");
                readData = readData.replaceAll("\\[","[\n");
                readData = readData.replaceAll("\\]","\n]");
                readData = readData.replaceAll("\\{","{\n");
                readData = readData.replaceAll("\\}","\n}");

2.确定一次最多输出的log长度（注意观察logcat,输出太多会显示不全）

maxLog = 500；

3.获取字串

String temp = "";
                    if(readData.length()>start+maxLog){
                        temp = readData.substring(start,start+maxLog);
                    }else{
                        temp = readData.substring(start);
                    }

这段好理解，就不解释了

4.智能截取，因为固定截取长度会出现单词截取不全的情况，因此使用getBestIndex()获取最后的逗号，],}位置，然后进行截取，尽量保证词完整性。

int index = getBestIndex(temp);
                    if(index!=-1 && temp.length()==maxLog && index < temp.length())
                        temp = readData.substring(start,start+index);
                     else
                        index = temp.length()-1;
                    start =start+index+1;

5.ps:一点建议

建议只在测试环境下进行输出，正式上线环境不要进行输出。